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<h2><span class="refentrytitle"><a name="glib-String-Utility-Functions.top_of_page"></a>String Utility Functions</span></h2>
<p>String Utility Functions — various string-related functions</p>
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<a name="glib-String-Utility-Functions.synopsis"></a><h2>Synopsis</h2>
<pre class="synopsis">
#include <glib.h>
#include <glib/gprintf.h>
<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a>* <a class="link" href="glib-String-Utility-Functions.html#g-strdup" title="g_strdup ()">g_strdup</a> (const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *str);
<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a>* <a class="link" href="glib-String-Utility-Functions.html#g-strndup" title="g_strndup ()">g_strndup</a> (const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *str,
<a class="link" href="glib-Basic-Types.html#gsize" title="gsize">gsize</a> n);
<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a>** <a class="link" href="glib-String-Utility-Functions.html#g-strdupv" title="g_strdupv ()">g_strdupv</a> (<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> **str_array);
<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a>* <a class="link" href="glib-String-Utility-Functions.html#g-strnfill" title="g_strnfill ()">g_strnfill</a> (<a class="link" href="glib-Basic-Types.html#gsize" title="gsize">gsize</a> length,
<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> fill_char);
<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a>* <a class="link" href="glib-String-Utility-Functions.html#g-stpcpy" title="g_stpcpy ()">g_stpcpy</a> (<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *dest,
const char *src);
<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> * <a class="link" href="glib-String-Utility-Functions.html#g-strstr-len" title="g_strstr_len ()">g_strstr_len</a> (const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *haystack,
<a class="link" href="glib-Basic-Types.html#gssize" title="gssize">gssize</a> haystack_len,
const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *needle);
<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> * <a class="link" href="glib-String-Utility-Functions.html#g-strrstr" title="g_strrstr ()">g_strrstr</a> (const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *haystack,
const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *needle);
<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> * <a class="link" href="glib-String-Utility-Functions.html#g-strrstr-len" title="g_strrstr_len ()">g_strrstr_len</a> (const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *haystack,
<a class="link" href="glib-Basic-Types.html#gssize" title="gssize">gssize</a> haystack_len,
const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *needle);
<a class="link" href="glib-Basic-Types.html#gboolean" title="gboolean">gboolean</a> <a class="link" href="glib-String-Utility-Functions.html#g-str-has-prefix" title="g_str_has_prefix ()">g_str_has_prefix</a> (const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *str,
const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *prefix);
<a class="link" href="glib-Basic-Types.html#gboolean" title="gboolean">gboolean</a> <a class="link" href="glib-String-Utility-Functions.html#g-str-has-suffix" title="g_str_has_suffix ()">g_str_has_suffix</a> (const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *str,
const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *suffix);
int <a class="link" href="glib-String-Utility-Functions.html#g-strcmp0" title="g_strcmp0 ()">g_strcmp0</a> (const char *str1,
const char *str2);
<a class="link" href="glib-Basic-Types.html#gsize" title="gsize">gsize</a> <a class="link" href="glib-String-Utility-Functions.html#g-strlcpy" title="g_strlcpy ()">g_strlcpy</a> (<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *dest,
const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *src,
<a class="link" href="glib-Basic-Types.html#gsize" title="gsize">gsize</a> dest_size);
<a class="link" href="glib-Basic-Types.html#gsize" title="gsize">gsize</a> <a class="link" href="glib-String-Utility-Functions.html#g-strlcat" title="g_strlcat ()">g_strlcat</a> (<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *dest,
const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *src,
<a class="link" href="glib-Basic-Types.html#gsize" title="gsize">gsize</a> dest_size);
<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a>* <a class="link" href="glib-String-Utility-Functions.html#g-strdup-printf" title="g_strdup_printf ()">g_strdup_printf</a> (const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *format,
...);
<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a>* <a class="link" href="glib-String-Utility-Functions.html#g-strdup-vprintf" title="g_strdup_vprintf ()">g_strdup_vprintf</a> (const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *format,
va_list args);
<a class="link" href="glib-Basic-Types.html#gint" title="gint">gint</a> <a class="link" href="glib-String-Utility-Functions.html#g-printf" title="g_printf ()">g_printf</a> (<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> const *format,
...);
<a class="link" href="glib-Basic-Types.html#gint" title="gint">gint</a> <a class="link" href="glib-String-Utility-Functions.html#g-vprintf" title="g_vprintf ()">g_vprintf</a> (<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> const *format,
va_list args);
<a class="link" href="glib-Basic-Types.html#gint" title="gint">gint</a> <a class="link" href="glib-String-Utility-Functions.html#g-fprintf" title="g_fprintf ()">g_fprintf</a> (FILE *file,
<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> const *format,
...);
<a class="link" href="glib-Basic-Types.html#gint" title="gint">gint</a> <a class="link" href="glib-String-Utility-Functions.html#g-vfprintf" title="g_vfprintf ()">g_vfprintf</a> (FILE *file,
<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> const *format,
va_list args);
<a class="link" href="glib-Basic-Types.html#gint" title="gint">gint</a> <a class="link" href="glib-String-Utility-Functions.html#g-sprintf" title="g_sprintf ()">g_sprintf</a> (<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *string,
<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> const *format,
...);
<a class="link" href="glib-Basic-Types.html#gint" title="gint">gint</a> <a class="link" href="glib-String-Utility-Functions.html#g-vsprintf" title="g_vsprintf ()">g_vsprintf</a> (<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *string,
<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> const *format,
va_list args);
<a class="link" href="glib-Basic-Types.html#gint" title="gint">gint</a> <a class="link" href="glib-String-Utility-Functions.html#g-snprintf" title="g_snprintf ()">g_snprintf</a> (<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *string,
<a class="link" href="glib-Basic-Types.html#gulong" title="gulong">gulong</a> n,
<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> const *format,
...);
<a class="link" href="glib-Basic-Types.html#gint" title="gint">gint</a> <a class="link" href="glib-String-Utility-Functions.html#g-vsnprintf" title="g_vsnprintf ()">g_vsnprintf</a> (<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *string,
<a class="link" href="glib-Basic-Types.html#gulong" title="gulong">gulong</a> n,
<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> const *format,
va_list args);
<a class="link" href="glib-Basic-Types.html#gint" title="gint">gint</a> <a class="link" href="glib-String-Utility-Functions.html#g-vasprintf" title="g_vasprintf ()">g_vasprintf</a> (<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> **string,
<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> const *format,
va_list args);
<a class="link" href="glib-Basic-Types.html#gsize" title="gsize">gsize</a> <a class="link" href="glib-String-Utility-Functions.html#g-printf-string-upper-bound" title="g_printf_string_upper_bound ()">g_printf_string_upper_bound</a> (const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *format,
va_list args);
<a class="link" href="glib-Basic-Types.html#gboolean" title="gboolean">gboolean</a> <a class="link" href="glib-String-Utility-Functions.html#g-ascii-isalnum" title="g_ascii_isalnum ()">g_ascii_isalnum</a> (<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> c);
<a class="link" href="glib-Basic-Types.html#gboolean" title="gboolean">gboolean</a> <a class="link" href="glib-String-Utility-Functions.html#g-ascii-isalpha" title="g_ascii_isalpha ()">g_ascii_isalpha</a> (<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> c);
<a class="link" href="glib-Basic-Types.html#gboolean" title="gboolean">gboolean</a> <a class="link" href="glib-String-Utility-Functions.html#g-ascii-iscntrl" title="g_ascii_iscntrl ()">g_ascii_iscntrl</a> (<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> c);
<a class="link" href="glib-Basic-Types.html#gboolean" title="gboolean">gboolean</a> <a class="link" href="glib-String-Utility-Functions.html#g-ascii-isdigit" title="g_ascii_isdigit ()">g_ascii_isdigit</a> (<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> c);
<a class="link" href="glib-Basic-Types.html#gboolean" title="gboolean">gboolean</a> <a class="link" href="glib-String-Utility-Functions.html#g-ascii-isgraph" title="g_ascii_isgraph ()">g_ascii_isgraph</a> (<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> c);
<a class="link" href="glib-Basic-Types.html#gboolean" title="gboolean">gboolean</a> <a class="link" href="glib-String-Utility-Functions.html#g-ascii-islower" title="g_ascii_islower ()">g_ascii_islower</a> (<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> c);
<a class="link" href="glib-Basic-Types.html#gboolean" title="gboolean">gboolean</a> <a class="link" href="glib-String-Utility-Functions.html#g-ascii-isprint" title="g_ascii_isprint ()">g_ascii_isprint</a> (<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> c);
<a class="link" href="glib-Basic-Types.html#gboolean" title="gboolean">gboolean</a> <a class="link" href="glib-String-Utility-Functions.html#g-ascii-ispunct" title="g_ascii_ispunct ()">g_ascii_ispunct</a> (<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> c);
<a class="link" href="glib-Basic-Types.html#gboolean" title="gboolean">gboolean</a> <a class="link" href="glib-String-Utility-Functions.html#g-ascii-isspace" title="g_ascii_isspace ()">g_ascii_isspace</a> (<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> c);
<a class="link" href="glib-Basic-Types.html#gboolean" title="gboolean">gboolean</a> <a class="link" href="glib-String-Utility-Functions.html#g-ascii-isupper" title="g_ascii_isupper ()">g_ascii_isupper</a> (<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> c);
<a class="link" href="glib-Basic-Types.html#gboolean" title="gboolean">gboolean</a> <a class="link" href="glib-String-Utility-Functions.html#g-ascii-isxdigit" title="g_ascii_isxdigit ()">g_ascii_isxdigit</a> (<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> c);
<a class="link" href="glib-Basic-Types.html#gint" title="gint">gint</a> <a class="link" href="glib-String-Utility-Functions.html#g-ascii-digit-value" title="g_ascii_digit_value ()">g_ascii_digit_value</a> (<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> c);
<a class="link" href="glib-Basic-Types.html#gint" title="gint">gint</a> <a class="link" href="glib-String-Utility-Functions.html#g-ascii-xdigit-value" title="g_ascii_xdigit_value ()">g_ascii_xdigit_value</a> (<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> c);
<a class="link" href="glib-Basic-Types.html#gint" title="gint">gint</a> <a class="link" href="glib-String-Utility-Functions.html#g-ascii-strcasecmp" title="g_ascii_strcasecmp ()">g_ascii_strcasecmp</a> (const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *s1,
const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *s2);
<a class="link" href="glib-Basic-Types.html#gint" title="gint">gint</a> <a class="link" href="glib-String-Utility-Functions.html#g-ascii-strncasecmp" title="g_ascii_strncasecmp ()">g_ascii_strncasecmp</a> (const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *s1,
const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *s2,
<a class="link" href="glib-Basic-Types.html#gsize" title="gsize">gsize</a> n);
<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a>* <a class="link" href="glib-String-Utility-Functions.html#g-ascii-strup" title="g_ascii_strup ()">g_ascii_strup</a> (const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *str,
<a class="link" href="glib-Basic-Types.html#gssize" title="gssize">gssize</a> len);
<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a>* <a class="link" href="glib-String-Utility-Functions.html#g-ascii-strdown" title="g_ascii_strdown ()">g_ascii_strdown</a> (const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *str,
<a class="link" href="glib-Basic-Types.html#gssize" title="gssize">gssize</a> len);
<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> <a class="link" href="glib-String-Utility-Functions.html#g-ascii-tolower" title="g_ascii_tolower ()">g_ascii_tolower</a> (<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> c);
<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> <a class="link" href="glib-String-Utility-Functions.html#g-ascii-toupper" title="g_ascii_toupper ()">g_ascii_toupper</a> (<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> c);
<a class="link" href="glib-Strings.html#GString" title="GString">GString</a>* <a class="link" href="glib-String-Utility-Functions.html#g-string-ascii-up" title="g_string_ascii_up ()">g_string_ascii_up</a> (<a class="link" href="glib-Strings.html#GString" title="GString">GString</a> *string);
<a class="link" href="glib-Strings.html#GString" title="GString">GString</a>* <a class="link" href="glib-String-Utility-Functions.html#g-string-ascii-down" title="g_string_ascii_down ()">g_string_ascii_down</a> (<a class="link" href="glib-Strings.html#GString" title="GString">GString</a> *string);
<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a>* <a class="link" href="glib-String-Utility-Functions.html#g-strup" title="g_strup ()">g_strup</a> (<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *string);
<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a>* <a class="link" href="glib-String-Utility-Functions.html#g-strdown" title="g_strdown ()">g_strdown</a> (<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *string);
<a class="link" href="glib-Basic-Types.html#gint" title="gint">gint</a> <a class="link" href="glib-String-Utility-Functions.html#g-strcasecmp" title="g_strcasecmp ()">g_strcasecmp</a> (const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *s1,
const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *s2);
<a class="link" href="glib-Basic-Types.html#gint" title="gint">gint</a> <a class="link" href="glib-String-Utility-Functions.html#g-strncasecmp" title="g_strncasecmp ()">g_strncasecmp</a> (const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *s1,
const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *s2,
<a class="link" href="glib-Basic-Types.html#guint" title="guint">guint</a> n);
<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a>* <a class="link" href="glib-String-Utility-Functions.html#g-strreverse" title="g_strreverse ()">g_strreverse</a> (<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *string);
<a class="link" href="glib-Basic-Types.html#gint64" title="gint64">gint64</a> <a class="link" href="glib-String-Utility-Functions.html#g-ascii-strtoll" title="g_ascii_strtoll ()">g_ascii_strtoll</a> (const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *nptr,
<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> **endptr,
<a class="link" href="glib-Basic-Types.html#guint" title="guint">guint</a> base);
<a class="link" href="glib-Basic-Types.html#guint64" title="guint64">guint64</a> <a class="link" href="glib-String-Utility-Functions.html#g-ascii-strtoull" title="g_ascii_strtoull ()">g_ascii_strtoull</a> (const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *nptr,
<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> **endptr,
<a class="link" href="glib-Basic-Types.html#guint" title="guint">guint</a> base);
#define <a class="link" href="glib-String-Utility-Functions.html#G-ASCII-DTOSTR-BUF-SIZE--CAPS" title="G_ASCII_DTOSTR_BUF_SIZE">G_ASCII_DTOSTR_BUF_SIZE</a>
<a class="link" href="glib-Basic-Types.html#gdouble" title="gdouble">gdouble</a> <a class="link" href="glib-String-Utility-Functions.html#g-ascii-strtod" title="g_ascii_strtod ()">g_ascii_strtod</a> (const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *nptr,
<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> **endptr);
<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> * <a class="link" href="glib-String-Utility-Functions.html#g-ascii-dtostr" title="g_ascii_dtostr ()">g_ascii_dtostr</a> (<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *buffer,
<a class="link" href="glib-Basic-Types.html#gint" title="gint">gint</a> buf_len,
<a class="link" href="glib-Basic-Types.html#gdouble" title="gdouble">gdouble</a> d);
<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> * <a class="link" href="glib-String-Utility-Functions.html#g-ascii-formatd" title="g_ascii_formatd ()">g_ascii_formatd</a> (<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *buffer,
<a class="link" href="glib-Basic-Types.html#gint" title="gint">gint</a> buf_len,
const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *format,
<a class="link" href="glib-Basic-Types.html#gdouble" title="gdouble">gdouble</a> d);
<a class="link" href="glib-Basic-Types.html#gdouble" title="gdouble">gdouble</a> <a class="link" href="glib-String-Utility-Functions.html#g-strtod" title="g_strtod ()">g_strtod</a> (const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *nptr,
<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> **endptr);
<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a>* <a class="link" href="glib-String-Utility-Functions.html#g-strchug" title="g_strchug ()">g_strchug</a> (<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *string);
<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a>* <a class="link" href="glib-String-Utility-Functions.html#g-strchomp" title="g_strchomp ()">g_strchomp</a> (<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *string);
#define <a class="link" href="glib-String-Utility-Functions.html#g-strstrip" title="g_strstrip()">g_strstrip</a> ( string )
<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a>* <a class="link" href="glib-String-Utility-Functions.html#g-strdelimit" title="g_strdelimit ()">g_strdelimit</a> (<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *string,
const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *delimiters,
<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> new_delimiter);
#define <a class="link" href="glib-String-Utility-Functions.html#G-STR-DELIMITERS--CAPS" title="G_STR_DELIMITERS">G_STR_DELIMITERS</a>
<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a>* <a class="link" href="glib-String-Utility-Functions.html#g-strescape" title="g_strescape ()">g_strescape</a> (const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *source,
const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *exceptions);
<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a>* <a class="link" href="glib-String-Utility-Functions.html#g-strcompress" title="g_strcompress ()">g_strcompress</a> (const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *source);
<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a>* <a class="link" href="glib-String-Utility-Functions.html#g-strcanon" title="g_strcanon ()">g_strcanon</a> (<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *string,
const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *valid_chars,
<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> substitutor);
<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a>** <a class="link" href="glib-String-Utility-Functions.html#g-strsplit" title="g_strsplit ()">g_strsplit</a> (const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *string,
const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *delimiter,
<a class="link" href="glib-Basic-Types.html#gint" title="gint">gint</a> max_tokens);
<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> ** <a class="link" href="glib-String-Utility-Functions.html#g-strsplit-set" title="g_strsplit_set ()">g_strsplit_set</a> (const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *string,
const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *delimiters,
<a class="link" href="glib-Basic-Types.html#gint" title="gint">gint</a> max_tokens);
void <a class="link" href="glib-String-Utility-Functions.html#g-strfreev" title="g_strfreev ()">g_strfreev</a> (<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> **str_array);
<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a>* <a class="link" href="glib-String-Utility-Functions.html#g-strconcat" title="g_strconcat ()">g_strconcat</a> (const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *string1,
...);
<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a>* <a class="link" href="glib-String-Utility-Functions.html#g-strjoin" title="g_strjoin ()">g_strjoin</a> (const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *separator,
...);
<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a>* <a class="link" href="glib-String-Utility-Functions.html#g-strjoinv" title="g_strjoinv ()">g_strjoinv</a> (const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *separator,
<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> **str_array);
<a class="link" href="glib-Basic-Types.html#guint" title="guint">guint</a> <a class="link" href="glib-String-Utility-Functions.html#g-strv-length" title="g_strv_length ()">g_strv_length</a> (<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> **str_array);
const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a>* <a class="link" href="glib-String-Utility-Functions.html#g-strerror" title="g_strerror ()">g_strerror</a> (<a class="link" href="glib-Basic-Types.html#gint" title="gint">gint</a> errnum);
const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a>* <a class="link" href="glib-String-Utility-Functions.html#g-strsignal" title="g_strsignal ()">g_strsignal</a> (<a class="link" href="glib-Basic-Types.html#gint" title="gint">gint</a> signum);
</pre>
</div>
<div class="refsect1" title="Description">
<a name="glib-String-Utility-Functions.description"></a><h2>Description</h2>
<p>
This section describes a number of utility functions for creating,
duplicating, and manipulating strings.
</p>
<p>
Note that the functions <a class="link" href="glib-String-Utility-Functions.html#g-printf" title="g_printf ()"><code class="function">g_printf()</code></a>, <a class="link" href="glib-String-Utility-Functions.html#g-fprintf" title="g_fprintf ()"><code class="function">g_fprintf()</code></a>, <a class="link" href="glib-String-Utility-Functions.html#g-sprintf" title="g_sprintf ()"><code class="function">g_sprintf()</code></a>, <a class="link" href="glib-String-Utility-Functions.html#g-snprintf" title="g_snprintf ()"><code class="function">g_snprintf()</code></a>,
<a class="link" href="glib-String-Utility-Functions.html#g-vprintf" title="g_vprintf ()"><code class="function">g_vprintf()</code></a>, <a class="link" href="glib-String-Utility-Functions.html#g-vfprintf" title="g_vfprintf ()"><code class="function">g_vfprintf()</code></a>, <a class="link" href="glib-String-Utility-Functions.html#g-vsprintf" title="g_vsprintf ()"><code class="function">g_vsprintf()</code></a> and <a class="link" href="glib-String-Utility-Functions.html#g-vsnprintf" title="g_vsnprintf ()"><code class="function">g_vsnprintf()</code></a> are declared in
the header <code class="filename">gprintf.h</code> which is <span class="emphasis"><em>not</em></span>
included in <code class="filename">glib.h</code> (otherwise using
<code class="filename">glib.h</code> would drag in <code class="filename">stdio.h</code>), so
you'll have to explicitly include <code class="literal"><glib/gprintf.h></code>
in order to use the GLib <code class="function">printf()</code> functions.
</p>
<p><a name="string-precision"></a>
While you may use the <code class="function">printf()</code> functions to format UTF-8 strings, notice that
the precision of a <code class="literal">%Ns</code> parameter is interpreted as the
number of <span class="emphasis"><em>bytes</em></span>, not <span class="emphasis"><em>characters</em></span> to print.
On top of that, the GNU libc implementation of the <code class="function">printf()</code> functions has the "feature"
that it checks that the string given for the <code class="literal">%Ns</code> parameter
consists of a whole number of characters in the current encoding. So, unless you
are sure you are always going to be in an UTF-8 locale or your know your text is restricted
to ASCII, avoid using <code class="literal">%Ns</code>.
If your intention is to format strings for a certain number of columns, then
<code class="literal">%Ns</code> is not a correct solution anyway, since it fails to take
wide characters (see <a class="link" href="glib-Unicode-Manipulation.html#g-unichar-iswide" title="g_unichar_iswide ()"><code class="function">g_unichar_iswide()</code></a>) into account.
</p>
</div>
<div class="refsect1" title="Details">
<a name="glib-String-Utility-Functions.details"></a><h2>Details</h2>
<div class="refsect2" title="g_strdup ()">
<a name="g-strdup"></a><h3>g_strdup ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a>* g_strdup (const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *str);</pre>
<p>
Duplicates a string. If <em class="parameter"><code>str</code></em> is <a class="link" href="glib-Standard-Macros.html#NULL--CAPS" title="NULL"><code class="literal">NULL</code></a> it returns <a class="link" href="glib-Standard-Macros.html#NULL--CAPS" title="NULL"><code class="literal">NULL</code></a>.
The returned string should be freed with <a class="link" href="glib-Memory-Allocation.html#g-free" title="g_free ()"><code class="function">g_free()</code></a>
when no longer needed.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>str</code></em> :</span></p></td>
<td> the string to duplicate
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> a newly-allocated copy of <em class="parameter"><code>str</code></em>
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="g_strndup ()">
<a name="g-strndup"></a><h3>g_strndup ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a>* g_strndup (const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *str,
<a class="link" href="glib-Basic-Types.html#gsize" title="gsize">gsize</a> n);</pre>
<p>
Duplicates the first <em class="parameter"><code>n</code></em> bytes of a string, returning a newly-allocated
buffer <em class="parameter"><code>n</code></em> + 1 bytes long which will always be nul-terminated.
If <em class="parameter"><code>str</code></em> is less than <em class="parameter"><code>n</code></em> bytes long the buffer is padded with nuls.
If <em class="parameter"><code>str</code></em> is <a class="link" href="glib-Standard-Macros.html#NULL--CAPS" title="NULL"><code class="literal">NULL</code></a> it returns <a class="link" href="glib-Standard-Macros.html#NULL--CAPS" title="NULL"><code class="literal">NULL</code></a>.
The returned value should be freed when no longer needed.
</p>
<p>
</p>
<div class="note" title="Note" style="margin-left: 0.5in; margin-right: 0.5in;">
<h3 class="title">Note</h3>
<p>
To copy a number of characters from a UTF-8 encoded string, use
<a class="link" href="glib-Unicode-Manipulation.html#g-utf8-strncpy" title="g_utf8_strncpy ()"><code class="function">g_utf8_strncpy()</code></a> instead.
</p>
</div>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>str</code></em> :</span></p></td>
<td> the string to duplicate
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>n</code></em> :</span></p></td>
<td> the maximum number of bytes to copy from <em class="parameter"><code>str</code></em>
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> a newly-allocated buffer containing the first <em class="parameter"><code>n</code></em> bytes
of <em class="parameter"><code>str</code></em>, nul-terminated
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="g_strdupv ()">
<a name="g-strdupv"></a><h3>g_strdupv ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a>** g_strdupv (<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> **str_array);</pre>
<p>
Copies <a class="link" href="glib-Standard-Macros.html#NULL--CAPS" title="NULL"><code class="literal">NULL</code></a>-terminated array of strings. The copy is a deep copy;
the new array should be freed by first freeing each string, then
the array itself. <a class="link" href="glib-String-Utility-Functions.html#g-strfreev" title="g_strfreev ()"><code class="function">g_strfreev()</code></a> does this for you. If called
on a <a class="link" href="glib-Standard-Macros.html#NULL--CAPS" title="NULL"><code class="literal">NULL</code></a> value, <a class="link" href="glib-String-Utility-Functions.html#g-strdupv" title="g_strdupv ()"><code class="function">g_strdupv()</code></a> simply returns <a class="link" href="glib-Standard-Macros.html#NULL--CAPS" title="NULL"><code class="literal">NULL</code></a>.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>str_array</code></em> :</span></p></td>
<td> <a class="link" href="glib-Standard-Macros.html#NULL--CAPS" title="NULL"><code class="literal">NULL</code></a>-terminated array of strings.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> a new <a class="link" href="glib-Standard-Macros.html#NULL--CAPS" title="NULL"><code class="literal">NULL</code></a>-terminated array of strings.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="g_strnfill ()">
<a name="g-strnfill"></a><h3>g_strnfill ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a>* g_strnfill (<a class="link" href="glib-Basic-Types.html#gsize" title="gsize">gsize</a> length,
<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> fill_char);</pre>
<p>
Creates a new string <em class="parameter"><code>length</code></em> bytes long filled with <em class="parameter"><code>fill_char</code></em>.
The returned string should be freed when no longer needed.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>length</code></em> :</span></p></td>
<td> the length of the new string
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>fill_char</code></em> :</span></p></td>
<td> the byte to fill the string with
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> a newly-allocated string filled the <em class="parameter"><code>fill_char</code></em>
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="g_stpcpy ()">
<a name="g-stpcpy"></a><h3>g_stpcpy ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a>* g_stpcpy (<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *dest,
const char *src);</pre>
<p>
Copies a nul-terminated string into the dest buffer, include the
trailing nul, and return a pointer to the trailing nul byte.
This is useful for concatenating multiple strings together
without having to repeatedly scan for the end.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>dest</code></em> :</span></p></td>
<td> destination buffer.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>src</code></em> :</span></p></td>
<td> source string.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> a pointer to trailing nul byte.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="g_strstr_len ()">
<a name="g-strstr-len"></a><h3>g_strstr_len ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> * g_strstr_len (const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *haystack,
<a class="link" href="glib-Basic-Types.html#gssize" title="gssize">gssize</a> haystack_len,
const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *needle);</pre>
<p>
Searches the string <em class="parameter"><code>haystack</code></em> for the first occurrence
of the string <em class="parameter"><code>needle</code></em>, limiting the length of the search
to <em class="parameter"><code>haystack_len</code></em>.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>haystack</code></em> :</span></p></td>
<td> a string.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>haystack_len</code></em> :</span></p></td>
<td> the maximum length of <em class="parameter"><code>haystack</code></em>. Note that -1 is
a valid length, if <em class="parameter"><code>haystack</code></em> is nul-terminated, meaning it will
search through the whole string.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>needle</code></em> :</span></p></td>
<td> the string to search for.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> a pointer to the found occurrence, or
<a class="link" href="glib-Standard-Macros.html#NULL--CAPS" title="NULL"><code class="literal">NULL</code></a> if not found.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="g_strrstr ()">
<a name="g-strrstr"></a><h3>g_strrstr ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> * g_strrstr (const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *haystack,
const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *needle);</pre>
<p>
Searches the string <em class="parameter"><code>haystack</code></em> for the last occurrence
of the string <em class="parameter"><code>needle</code></em>.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>haystack</code></em> :</span></p></td>
<td> a nul-terminated string.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>needle</code></em> :</span></p></td>
<td> the nul-terminated string to search for.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> a pointer to the found occurrence, or
<a class="link" href="glib-Standard-Macros.html#NULL--CAPS" title="NULL"><code class="literal">NULL</code></a> if not found.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="g_strrstr_len ()">
<a name="g-strrstr-len"></a><h3>g_strrstr_len ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> * g_strrstr_len (const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *haystack,
<a class="link" href="glib-Basic-Types.html#gssize" title="gssize">gssize</a> haystack_len,
const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *needle);</pre>
<p>
Searches the string <em class="parameter"><code>haystack</code></em> for the last occurrence
of the string <em class="parameter"><code>needle</code></em>, limiting the length of the search
to <em class="parameter"><code>haystack_len</code></em>.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>haystack</code></em> :</span></p></td>
<td> a nul-terminated string.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>haystack_len</code></em> :</span></p></td>
<td> the maximum length of <em class="parameter"><code>haystack</code></em>.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>needle</code></em> :</span></p></td>
<td> the nul-terminated string to search for.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> a pointer to the found occurrence, or
<a class="link" href="glib-Standard-Macros.html#NULL--CAPS" title="NULL"><code class="literal">NULL</code></a> if not found.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="g_str_has_prefix ()">
<a name="g-str-has-prefix"></a><h3>g_str_has_prefix ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gboolean" title="gboolean">gboolean</a> g_str_has_prefix (const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *str,
const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *prefix);</pre>
<p>
Looks whether the string <em class="parameter"><code>str</code></em> begins with <em class="parameter"><code>prefix</code></em>.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>str</code></em> :</span></p></td>
<td> a nul-terminated string.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>prefix</code></em> :</span></p></td>
<td> the nul-terminated prefix to look for.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> <a class="link" href="glib-Standard-Macros.html#TRUE--CAPS" title="TRUE"><code class="literal">TRUE</code></a> if <em class="parameter"><code>str</code></em> begins with <em class="parameter"><code>prefix</code></em>, <a class="link" href="glib-Standard-Macros.html#FALSE--CAPS" title="FALSE"><code class="literal">FALSE</code></a> otherwise.
</td>
</tr>
</tbody>
</table></div>
<p class="since">Since 2.2</p>
</div>
<hr>
<div class="refsect2" title="g_str_has_suffix ()">
<a name="g-str-has-suffix"></a><h3>g_str_has_suffix ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gboolean" title="gboolean">gboolean</a> g_str_has_suffix (const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *str,
const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *suffix);</pre>
<p>
Looks whether the string <em class="parameter"><code>str</code></em> ends with <em class="parameter"><code>suffix</code></em>.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>str</code></em> :</span></p></td>
<td> a nul-terminated string.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>suffix</code></em> :</span></p></td>
<td> the nul-terminated suffix to look for.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> <a class="link" href="glib-Standard-Macros.html#TRUE--CAPS" title="TRUE"><code class="literal">TRUE</code></a> if <em class="parameter"><code>str</code></em> end with <em class="parameter"><code>suffix</code></em>, <a class="link" href="glib-Standard-Macros.html#FALSE--CAPS" title="FALSE"><code class="literal">FALSE</code></a> otherwise.
</td>
</tr>
</tbody>
</table></div>
<p class="since">Since 2.2</p>
</div>
<hr>
<div class="refsect2" title="g_strcmp0 ()">
<a name="g-strcmp0"></a><h3>g_strcmp0 ()</h3>
<pre class="programlisting">int g_strcmp0 (const char *str1,
const char *str2);</pre>
<p>
Compares <em class="parameter"><code>str1</code></em> and <em class="parameter"><code>str2</code></em> like <code class="function">strcmp()</code>. Handles <a class="link" href="glib-Standard-Macros.html#NULL--CAPS" title="NULL"><code class="literal">NULL</code></a>
gracefully by sorting it before non-<a class="link" href="glib-Standard-Macros.html#NULL--CAPS" title="NULL"><code class="literal">NULL</code></a> strings.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>str1</code></em> :</span></p></td>
<td> a C string or <a class="link" href="glib-Standard-Macros.html#NULL--CAPS" title="NULL"><code class="literal">NULL</code></a>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>str2</code></em> :</span></p></td>
<td> another C string or <a class="link" href="glib-Standard-Macros.html#NULL--CAPS" title="NULL"><code class="literal">NULL</code></a>
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> -1, 0 or 1, if <em class="parameter"><code>str1</code></em> is <, == or > than <em class="parameter"><code>str2</code></em>.
</td>
</tr>
</tbody>
</table></div>
<p class="since">Since 2.16</p>
</div>
<hr>
<div class="refsect2" title="g_strlcpy ()">
<a name="g-strlcpy"></a><h3>g_strlcpy ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gsize" title="gsize">gsize</a> g_strlcpy (<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *dest,
const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *src,
<a class="link" href="glib-Basic-Types.html#gsize" title="gsize">gsize</a> dest_size);</pre>
<p>
Portability wrapper that calls <code class="function">strlcpy()</code> on systems which have it,
and emulates <code class="function">strlcpy()</code> otherwise. Copies <em class="parameter"><code>src</code></em> to <em class="parameter"><code>dest</code></em>; <em class="parameter"><code>dest</code></em> is
guaranteed to be nul-terminated; <em class="parameter"><code>src</code></em> must be nul-terminated;
<em class="parameter"><code>dest_size</code></em> is the buffer size, not the number of chars to copy.
</p>
<p>
At most dest_size - 1 characters will be copied. Always nul-terminates
(unless dest_size == 0). This function does <span class="emphasis"><em>not</em></span>
allocate memory. Unlike <code class="function">strncpy()</code>, this function doesn't pad dest (so
it's often faster). It returns the size of the attempted result,
strlen (src), so if <em class="parameter"><code>retval</code></em> >= <em class="parameter"><code>dest_size</code></em>, truncation occurred.
</p>
<p>
</p>
<div class="note" title="Note" style="margin-left: 0.5in; margin-right: 0.5in;">
<h3 class="title">Note</h3>
<p>Caveat: <code class="function">strlcpy()</code> is supposedly more secure than
<code class="function">strcpy()</code> or <code class="function">strncpy()</code>, but if you really want to avoid screwups,
<a class="link" href="glib-String-Utility-Functions.html#g-strdup" title="g_strdup ()"><code class="function">g_strdup()</code></a> is an even better idea.</p>
</div>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>dest</code></em> :</span></p></td>
<td> destination buffer
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>src</code></em> :</span></p></td>
<td> source buffer
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>dest_size</code></em> :</span></p></td>
<td> length of <em class="parameter"><code>dest</code></em> in bytes
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> length of <em class="parameter"><code>src</code></em>
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="g_strlcat ()">
<a name="g-strlcat"></a><h3>g_strlcat ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gsize" title="gsize">gsize</a> g_strlcat (<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *dest,
const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *src,
<a class="link" href="glib-Basic-Types.html#gsize" title="gsize">gsize</a> dest_size);</pre>
<p>
Portability wrapper that calls <code class="function">strlcat()</code> on systems which have it,
and emulates it otherwise. Appends nul-terminated <em class="parameter"><code>src</code></em> string to <em class="parameter"><code>dest</code></em>,
guaranteeing nul-termination for <em class="parameter"><code>dest</code></em>. The total size of <em class="parameter"><code>dest</code></em> won't
exceed <em class="parameter"><code>dest_size</code></em>.
</p>
<p>
At most dest_size - 1 characters will be copied.
Unlike strncat, dest_size is the full size of dest, not the space left over.
This function does NOT allocate memory.
This always NUL terminates (unless siz == 0 or there were no NUL characters
in the dest_size characters of dest to start with).</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>dest</code></em> :</span></p></td>
<td> destination buffer, already containing one nul-terminated string
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>src</code></em> :</span></p></td>
<td> source buffer
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>dest_size</code></em> :</span></p></td>
<td> length of <em class="parameter"><code>dest</code></em> buffer in bytes (not length of existing string
inside <em class="parameter"><code>dest</code></em>)
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>size of attempted result, which is
MIN (dest_size, strlen (original dest)) + strlen (src),
so if retval >= dest_size, truncation occurred.
<div class="note" title="Note" style="margin-left: 0.5in; margin-right: 0.5in;">
<h3 class="title">Note</h3>
<p>Caveat: this is supposedly a more secure alternative to
<code class="function">strcat()</code> or <code class="function">strncat()</code>, but for real security <a class="link" href="glib-String-Utility-Functions.html#g-strconcat" title="g_strconcat ()"><code class="function">g_strconcat()</code></a> is harder
to mess up.</p>
</div>
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="g_strdup_printf ()">
<a name="g-strdup-printf"></a><h3>g_strdup_printf ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a>* g_strdup_printf (const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *format,
...);</pre>
<p>
Similar to the standard C <code class="function">sprintf()</code> function but safer, since it
calculates the maximum space required and allocates memory to hold
the result. The returned string should be freed with <a class="link" href="glib-Memory-Allocation.html#g-free" title="g_free ()"><code class="function">g_free()</code></a> when no
longer needed.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>format</code></em> :</span></p></td>
<td> a standard <code class="function">printf()</code> format string, but notice
<a class="link" href="glib-String-Utility-Functions.html#string-precision">string precision pitfalls</a>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>...</code></em> :</span></p></td>
<td> the parameters to insert into the format string
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> a newly-allocated string holding the result
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="g_strdup_vprintf ()">
<a name="g-strdup-vprintf"></a><h3>g_strdup_vprintf ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a>* g_strdup_vprintf (const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *format,
va_list args);</pre>
<p>
Similar to the standard C <code class="function">vsprintf()</code> function but safer, since it
calculates the maximum space required and allocates memory to hold
the result. The returned string should be freed with <a class="link" href="glib-Memory-Allocation.html#g-free" title="g_free ()"><code class="function">g_free()</code></a> when
no longer needed.
</p>
<p>
See also <a class="link" href="glib-String-Utility-Functions.html#g-vasprintf" title="g_vasprintf ()"><code class="function">g_vasprintf()</code></a>, which offers the same functionality, but
additionally returns the length of the allocated string.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>format</code></em> :</span></p></td>
<td> a standard <code class="function">printf()</code> format string, but notice
<a class="link" href="glib-String-Utility-Functions.html#string-precision">string precision pitfalls</a>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>args</code></em> :</span></p></td>
<td> the list of parameters to insert into the format string
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> a newly-allocated string holding the result
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="g_printf ()">
<a name="g-printf"></a><h3>g_printf ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gint" title="gint">gint</a> g_printf (<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> const *format,
...);</pre>
<p>
An implementation of the standard <code class="function">printf()</code> function which supports
positional parameters, as specified in the Single Unix Specification.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>format</code></em> :</span></p></td>
<td> a standard <code class="function">printf()</code> format string, but notice
<a class="link" href="glib-String-Utility-Functions.html#string-precision">string precision pitfalls</a>.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>...</code></em> :</span></p></td>
<td> the arguments to insert in the output.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> the number of bytes printed.
</td>
</tr>
</tbody>
</table></div>
<p class="since">Since 2.2</p>
</div>
<hr>
<div class="refsect2" title="g_vprintf ()">
<a name="g-vprintf"></a><h3>g_vprintf ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gint" title="gint">gint</a> g_vprintf (<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> const *format,
va_list args);</pre>
<p>
An implementation of the standard <code class="function">vprintf()</code> function which supports
positional parameters, as specified in the Single Unix Specification.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>format</code></em> :</span></p></td>
<td> a standard <code class="function">printf()</code> format string, but notice
<a class="link" href="glib-String-Utility-Functions.html#string-precision">string precision pitfalls</a>.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>args</code></em> :</span></p></td>
<td> the list of arguments to insert in the output.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> the number of bytes printed.
</td>
</tr>
</tbody>
</table></div>
<p class="since">Since 2.2</p>
</div>
<hr>
<div class="refsect2" title="g_fprintf ()">
<a name="g-fprintf"></a><h3>g_fprintf ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gint" title="gint">gint</a> g_fprintf (FILE *file,
<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> const *format,
...);</pre>
<p>
An implementation of the standard <code class="function">fprintf()</code> function which supports
positional parameters, as specified in the Single Unix Specification.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>file</code></em> :</span></p></td>
<td> the stream to write to.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>format</code></em> :</span></p></td>
<td> a standard <code class="function">printf()</code> format string, but notice
<a class="link" href="glib-String-Utility-Functions.html#string-precision">string precision pitfalls</a>.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>...</code></em> :</span></p></td>
<td> the arguments to insert in the output.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> the number of bytes printed.
</td>
</tr>
</tbody>
</table></div>
<p class="since">Since 2.2</p>
</div>
<hr>
<div class="refsect2" title="g_vfprintf ()">
<a name="g-vfprintf"></a><h3>g_vfprintf ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gint" title="gint">gint</a> g_vfprintf (FILE *file,
<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> const *format,
va_list args);</pre>
<p>
An implementation of the standard <code class="function">fprintf()</code> function which supports
positional parameters, as specified in the Single Unix Specification.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>file</code></em> :</span></p></td>
<td> the stream to write to.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>format</code></em> :</span></p></td>
<td> a standard <code class="function">printf()</code> format string, but notice
<a class="link" href="glib-String-Utility-Functions.html#string-precision">string precision pitfalls</a>.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>args</code></em> :</span></p></td>
<td> the list of arguments to insert in the output.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> the number of bytes printed.
</td>
</tr>
</tbody>
</table></div>
<p class="since">Since 2.2</p>
</div>
<hr>
<div class="refsect2" title="g_sprintf ()">
<a name="g-sprintf"></a><h3>g_sprintf ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gint" title="gint">gint</a> g_sprintf (<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *string,
<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> const *format,
...);</pre>
<p>
An implementation of the standard <code class="function">sprintf()</code> function which supports
positional parameters, as specified in the Single Unix Specification.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>string</code></em> :</span></p></td>
<td> A pointer to a memory buffer to contain the resulting string. It
is up to the caller to ensure that the allocated buffer is large
enough to hold the formatted result
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>format</code></em> :</span></p></td>
<td> a standard <code class="function">printf()</code> format string, but notice
<a class="link" href="glib-String-Utility-Functions.html#string-precision">string precision pitfalls</a>.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>...</code></em> :</span></p></td>
<td> the arguments to insert in the output.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> the number of bytes printed.
</td>
</tr>
</tbody>
</table></div>
<p class="since">Since 2.2</p>
</div>
<hr>
<div class="refsect2" title="g_vsprintf ()">
<a name="g-vsprintf"></a><h3>g_vsprintf ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gint" title="gint">gint</a> g_vsprintf (<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *string,
<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> const *format,
va_list args);</pre>
<p>
An implementation of the standard <code class="function">vsprintf()</code> function which supports
positional parameters, as specified in the Single Unix Specification.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>string</code></em> :</span></p></td>
<td> the buffer to hold the output.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>format</code></em> :</span></p></td>
<td> a standard <code class="function">printf()</code> format string, but notice
<a class="link" href="glib-String-Utility-Functions.html#string-precision">string precision pitfalls</a>.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>args</code></em> :</span></p></td>
<td> the list of arguments to insert in the output.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> the number of bytes printed.
</td>
</tr>
</tbody>
</table></div>
<p class="since">Since 2.2</p>
</div>
<hr>
<div class="refsect2" title="g_snprintf ()">
<a name="g-snprintf"></a><h3>g_snprintf ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gint" title="gint">gint</a> g_snprintf (<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *string,
<a class="link" href="glib-Basic-Types.html#gulong" title="gulong">gulong</a> n,
<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> const *format,
...);</pre>
<p>
A safer form of the standard <code class="function">sprintf()</code> function. The output is guaranteed
to not exceed <em class="parameter"><code>n</code></em> characters (including the terminating nul character), so
it is easy to ensure that a buffer overflow cannot occur.
</p>
<p>
See also <a class="link" href="glib-String-Utility-Functions.html#g-strdup-printf" title="g_strdup_printf ()"><code class="function">g_strdup_printf()</code></a>.
</p>
<p>
In versions of GLib prior to 1.2.3, this function may return -1 if the
output was truncated, and the truncated string may not be nul-terminated.
In versions prior to 1.3.12, this function returns the length of the output
string.
</p>
<p>
The return value of <a class="link" href="glib-String-Utility-Functions.html#g-snprintf" title="g_snprintf ()"><code class="function">g_snprintf()</code></a> conforms to the <code class="function">snprintf()</code>
function as standardized in ISO C99. Note that this is different from
traditional <code class="function">snprintf()</code>, which returns the length of the output string.
</p>
<p>
The format string may contain positional parameters, as specified in
the Single Unix Specification.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>string</code></em> :</span></p></td>
<td> the buffer to hold the output.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>n</code></em> :</span></p></td>
<td> the maximum number of bytes to produce (including the
terminating nul character).
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>format</code></em> :</span></p></td>
<td> a standard <code class="function">printf()</code> format string, but notice
<a class="link" href="glib-String-Utility-Functions.html#string-precision">string precision pitfalls</a>.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>...</code></em> :</span></p></td>
<td> the arguments to insert in the output.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> the number of bytes which would be produced if the buffer
was large enough.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="g_vsnprintf ()">
<a name="g-vsnprintf"></a><h3>g_vsnprintf ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gint" title="gint">gint</a> g_vsnprintf (<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *string,
<a class="link" href="glib-Basic-Types.html#gulong" title="gulong">gulong</a> n,
<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> const *format,
va_list args);</pre>
<p>
A safer form of the standard <code class="function">vsprintf()</code> function. The output is guaranteed
to not exceed <em class="parameter"><code>n</code></em> characters (including the terminating nul character), so
it is easy to ensure that a buffer overflow cannot occur.
</p>
<p>
See also <a class="link" href="glib-String-Utility-Functions.html#g-strdup-vprintf" title="g_strdup_vprintf ()"><code class="function">g_strdup_vprintf()</code></a>.
</p>
<p>
In versions of GLib prior to 1.2.3, this function may return -1 if the
output was truncated, and the truncated string may not be nul-terminated.
In versions prior to 1.3.12, this function returns the length of the output
string.
</p>
<p>
The return value of <a class="link" href="glib-String-Utility-Functions.html#g-vsnprintf" title="g_vsnprintf ()"><code class="function">g_vsnprintf()</code></a> conforms to the <code class="function">vsnprintf()</code> function
as standardized in ISO C99. Note that this is different from traditional
<code class="function">vsnprintf()</code>, which returns the length of the output string.
</p>
<p>
The format string may contain positional parameters, as specified in
the Single Unix Specification.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>string</code></em> :</span></p></td>
<td> the buffer to hold the output.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>n</code></em> :</span></p></td>
<td> the maximum number of bytes to produce (including the
terminating nul character).
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>format</code></em> :</span></p></td>
<td> a standard <code class="function">printf()</code> format string, but notice
<a class="link" href="glib-String-Utility-Functions.html#string-precision">string precision pitfalls</a>.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>args</code></em> :</span></p></td>
<td> the list of arguments to insert in the output.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> the number of bytes which would be produced if the buffer
was large enough.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="g_vasprintf ()">
<a name="g-vasprintf"></a><h3>g_vasprintf ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gint" title="gint">gint</a> g_vasprintf (<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> **string,
<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> const *format,
va_list args);</pre>
<p>
An implementation of the GNU <code class="function">vasprintf()</code> function which supports
positional parameters, as specified in the Single Unix Specification.
This function is similar to <a class="link" href="glib-String-Utility-Functions.html#g-vsprintf" title="g_vsprintf ()"><code class="function">g_vsprintf()</code></a>, except that it allocates a
string to hold the output, instead of putting the output in a buffer
you allocate in advance.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>string</code></em> :</span></p></td>
<td> the return location for the newly-allocated string.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>format</code></em> :</span></p></td>
<td> a standard <code class="function">printf()</code> format string, but notice
<a class="link" href="glib-String-Utility-Functions.html#string-precision">string precision pitfalls</a>.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>args</code></em> :</span></p></td>
<td> the list of arguments to insert in the output.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> the number of bytes printed.
</td>
</tr>
</tbody>
</table></div>
<p class="since">Since 2.4</p>
</div>
<hr>
<div class="refsect2" title="g_printf_string_upper_bound ()">
<a name="g-printf-string-upper-bound"></a><h3>g_printf_string_upper_bound ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gsize" title="gsize">gsize</a> g_printf_string_upper_bound (const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *format,
va_list args);</pre>
<p>
Calculates the maximum space needed to store the output of the <code class="function">sprintf()</code>
function.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>format</code></em> :</span></p></td>
<td>the format string. See the <code class="function">printf()</code> documentation.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>args</code></em> :</span></p></td>
<td>the parameters to be inserted into the format string.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>the maximum space needed to store the formatted string.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="g_ascii_isalnum ()">
<a name="g-ascii-isalnum"></a><h3>g_ascii_isalnum ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gboolean" title="gboolean">gboolean</a> g_ascii_isalnum (<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> c);</pre>
<p>
Determines whether a character is alphanumeric.
</p>
<p>
Unlike the standard C library <code class="function">isalnum()</code> function, this only
recognizes standard ASCII letters and ignores the locale, returning
<a class="link" href="glib-Standard-Macros.html#FALSE--CAPS" title="FALSE"><code class="literal">FALSE</code></a> for all non-ASCII characters. Also unlike the standard
library function, this takes a <span class="type">char</span>, not an <span class="type">int</span>,
so don't call it on <code class="literal">EOF</code> but no need to cast to <a class="link" href="glib-Basic-Types.html#guchar" title="guchar"><span class="type">guchar</span></a> before passing a
possibly non-ASCII character in.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>c</code></em> :</span></p></td>
<td>any character
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>%TRUE if <em class="parameter"><code>c</code></em> is an ASCII alphanumeric character
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="g_ascii_isalpha ()">
<a name="g-ascii-isalpha"></a><h3>g_ascii_isalpha ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gboolean" title="gboolean">gboolean</a> g_ascii_isalpha (<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> c);</pre>
<p>
Determines whether a character is alphabetic (i.e. a letter).
</p>
<p>
Unlike the standard C library <code class="function">isalpha()</code> function, this only
recognizes standard ASCII letters and ignores the locale, returning
<a class="link" href="glib-Standard-Macros.html#FALSE--CAPS" title="FALSE"><code class="literal">FALSE</code></a> for all non-ASCII characters. Also unlike the standard
library function, this takes a <span class="type">char</span>, not an <span class="type">int</span>,
so don't call it on <code class="literal">EOF</code> but no need to cast to <a class="link" href="glib-Basic-Types.html#guchar" title="guchar"><span class="type">guchar</span></a> before passing a
possibly non-ASCII character in.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>c</code></em> :</span></p></td>
<td>any character
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>%TRUE if <em class="parameter"><code>c</code></em> is an ASCII alphabetic character
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="g_ascii_iscntrl ()">
<a name="g-ascii-iscntrl"></a><h3>g_ascii_iscntrl ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gboolean" title="gboolean">gboolean</a> g_ascii_iscntrl (<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> c);</pre>
<p>
Determines whether a character is a control character.
</p>
<p>
Unlike the standard C library <code class="function">iscntrl()</code> function, this only
recognizes standard ASCII control characters and ignores the locale,
returning <a class="link" href="glib-Standard-Macros.html#FALSE--CAPS" title="FALSE"><code class="literal">FALSE</code></a> for all non-ASCII characters. Also unlike the standard
library function, this takes a <span class="type">char</span>, not an <span class="type">int</span>,
so don't call it on <code class="literal">EOF</code> but no need to cast to <a class="link" href="glib-Basic-Types.html#guchar" title="guchar"><span class="type">guchar</span></a> before passing a
possibly non-ASCII character in.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>c</code></em> :</span></p></td>
<td>any character
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>%TRUE if <em class="parameter"><code>c</code></em> is an ASCII control character.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="g_ascii_isdigit ()">
<a name="g-ascii-isdigit"></a><h3>g_ascii_isdigit ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gboolean" title="gboolean">gboolean</a> g_ascii_isdigit (<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> c);</pre>
<p>
Determines whether a character is digit (0-9).
</p>
<p>
Unlike the standard C library <code class="function">isdigit()</code> function,
this takes a <span class="type">char</span>, not an <span class="type">int</span>, so don't call it
on <code class="literal">EOF</code> but no need to cast to <a class="link" href="glib-Basic-Types.html#guchar" title="guchar"><span class="type">guchar</span></a> before passing a possibly
non-ASCII character in.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>c</code></em> :</span></p></td>
<td>any character
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>%TRUE if <em class="parameter"><code>c</code></em> is an ASCII digit.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="g_ascii_isgraph ()">
<a name="g-ascii-isgraph"></a><h3>g_ascii_isgraph ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gboolean" title="gboolean">gboolean</a> g_ascii_isgraph (<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> c);</pre>
<p>
Determines whether a character is a printing character and not a space.
</p>
<p>
Unlike the standard C library <code class="function">isgraph()</code> function,
this only recognizes standard ASCII characters and ignores the locale,
returning <a class="link" href="glib-Standard-Macros.html#FALSE--CAPS" title="FALSE"><code class="literal">FALSE</code></a> for all non-ASCII characters. Also unlike the standard
library function, this takes a <span class="type">char</span>, not an <span class="type">int</span>,
so don't call it on <code class="literal">EOF</code> but no need to cast to <a class="link" href="glib-Basic-Types.html#guchar" title="guchar"><span class="type">guchar</span></a> before passing a
possibly non-ASCII character in.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>c</code></em> :</span></p></td>
<td>any character
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>%TRUE if <em class="parameter"><code>c</code></em> is an ASCII printing character other than space.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="g_ascii_islower ()">
<a name="g-ascii-islower"></a><h3>g_ascii_islower ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gboolean" title="gboolean">gboolean</a> g_ascii_islower (<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> c);</pre>
<p>
Determines whether a character is an ASCII lower case letter.
</p>
<p>
Unlike the standard C library <code class="function">islower()</code> function,
this only recognizes standard ASCII letters and ignores the locale,
returning <a class="link" href="glib-Standard-Macros.html#FALSE--CAPS" title="FALSE"><code class="literal">FALSE</code></a> for all non-ASCII characters. Also unlike the standard
library function, this takes a <span class="type">char</span>, not an <span class="type">int</span>,
so don't call it on <code class="literal">EOF</code> but no need to worry about casting to <a class="link" href="glib-Basic-Types.html#guchar" title="guchar"><span class="type">guchar</span></a>
before passing a possibly non-ASCII character in.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>c</code></em> :</span></p></td>
<td>any character
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>%TRUE if <em class="parameter"><code>c</code></em> is an ASCII lower case letter
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="g_ascii_isprint ()">
<a name="g-ascii-isprint"></a><h3>g_ascii_isprint ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gboolean" title="gboolean">gboolean</a> g_ascii_isprint (<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> c);</pre>
<p>
Determines whether a character is a printing character.
</p>
<p>
Unlike the standard C library <code class="function">isprint()</code> function,
this only recognizes standard ASCII characters and ignores the locale,
returning <a class="link" href="glib-Standard-Macros.html#FALSE--CAPS" title="FALSE"><code class="literal">FALSE</code></a> for all non-ASCII characters. Also unlike the standard
library function, this takes a <span class="type">char</span>, not an <span class="type">int</span>,
so don't call it on <code class="literal">EOF</code> but no need to cast to <a class="link" href="glib-Basic-Types.html#guchar" title="guchar"><span class="type">guchar</span></a> before passing a
possibly non-ASCII character in.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>c</code></em> :</span></p></td>
<td>any character
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>%TRUE if <em class="parameter"><code>c</code></em> is an ASCII printing character.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="g_ascii_ispunct ()">
<a name="g-ascii-ispunct"></a><h3>g_ascii_ispunct ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gboolean" title="gboolean">gboolean</a> g_ascii_ispunct (<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> c);</pre>
<p>
Determines whether a character is a punctuation character.
</p>
<p>
Unlike the standard C library <code class="function">ispunct()</code> function,
this only recognizes standard ASCII letters and ignores the locale,
returning <a class="link" href="glib-Standard-Macros.html#FALSE--CAPS" title="FALSE"><code class="literal">FALSE</code></a> for all non-ASCII characters. Also unlike the standard
library function, this takes a <span class="type">char</span>, not an <span class="type">int</span>,
so don't call it on <code class="literal">EOF</code> but no need to cast to <a class="link" href="glib-Basic-Types.html#guchar" title="guchar"><span class="type">guchar</span></a> before passing a
possibly non-ASCII character in.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>c</code></em> :</span></p></td>
<td>any character
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>%TRUE if <em class="parameter"><code>c</code></em> is an ASCII punctuation character.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="g_ascii_isspace ()">
<a name="g-ascii-isspace"></a><h3>g_ascii_isspace ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gboolean" title="gboolean">gboolean</a> g_ascii_isspace (<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> c);</pre>
<p>
Determines whether a character is a white-space character.
</p>
<p>
Unlike the standard C library <code class="function">isspace()</code> function,
this only recognizes standard ASCII white-space and ignores the locale,
returning <a class="link" href="glib-Standard-Macros.html#FALSE--CAPS" title="FALSE"><code class="literal">FALSE</code></a> for all non-ASCII characters. Also unlike the standard
library function, this takes a <span class="type">char</span>, not an <span class="type">int</span>,
so don't call it on <code class="literal">EOF</code> but no need to cast to <a class="link" href="glib-Basic-Types.html#guchar" title="guchar"><span class="type">guchar</span></a> before passing a
possibly non-ASCII character in.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>c</code></em> :</span></p></td>
<td>any character
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>%TRUE if <em class="parameter"><code>c</code></em> is an ASCII white-space character
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="g_ascii_isupper ()">
<a name="g-ascii-isupper"></a><h3>g_ascii_isupper ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gboolean" title="gboolean">gboolean</a> g_ascii_isupper (<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> c);</pre>
<p>
Determines whether a character is an ASCII upper case letter.
</p>
<p>
Unlike the standard C library <code class="function">isupper()</code> function,
this only recognizes standard ASCII letters and ignores the locale,
returning <a class="link" href="glib-Standard-Macros.html#FALSE--CAPS" title="FALSE"><code class="literal">FALSE</code></a> for all non-ASCII characters. Also unlike the standard
library function, this takes a <span class="type">char</span>, not an <span class="type">int</span>,
so don't call it on <code class="literal">EOF</code> but no need to worry about casting to <a class="link" href="glib-Basic-Types.html#guchar" title="guchar"><span class="type">guchar</span></a>
before passing a possibly non-ASCII character in.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>c</code></em> :</span></p></td>
<td>any character
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>%TRUE if <em class="parameter"><code>c</code></em> is an ASCII upper case letter
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="g_ascii_isxdigit ()">
<a name="g-ascii-isxdigit"></a><h3>g_ascii_isxdigit ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gboolean" title="gboolean">gboolean</a> g_ascii_isxdigit (<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> c);</pre>
<p>
Determines whether a character is a hexadecimal-digit character.
</p>
<p>
Unlike the standard C library <code class="function">isxdigit()</code> function,
this takes a <span class="type">char</span>, not an <span class="type">int</span>, so
don't call it on <code class="literal">EOF</code> but no need to cast to <a class="link" href="glib-Basic-Types.html#guchar" title="guchar"><span class="type">guchar</span></a> before passing a
possibly non-ASCII character in.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>c</code></em> :</span></p></td>
<td>any character
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>%TRUE if <em class="parameter"><code>c</code></em> is an ASCII hexadecimal-digit character.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="g_ascii_digit_value ()">
<a name="g-ascii-digit-value"></a><h3>g_ascii_digit_value ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gint" title="gint">gint</a> g_ascii_digit_value (<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> c);</pre>
<p>
Determines the numeric value of a character as a decimal
digit. Differs from <a class="link" href="glib-Unicode-Manipulation.html#g-unichar-digit-value" title="g_unichar_digit_value ()"><code class="function">g_unichar_digit_value()</code></a> because it takes
a char, so there's no worry about sign extension if characters
are signed.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>c</code></em> :</span></p></td>
<td> an ASCII character.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> If <em class="parameter"><code>c</code></em> is a decimal digit (according to
<a class="link" href="glib-String-Utility-Functions.html#g-ascii-isdigit" title="g_ascii_isdigit ()"><code class="function">g_ascii_isdigit()</code></a>), its numeric value. Otherwise, -1.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="g_ascii_xdigit_value ()">
<a name="g-ascii-xdigit-value"></a><h3>g_ascii_xdigit_value ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gint" title="gint">gint</a> g_ascii_xdigit_value (<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> c);</pre>
<p>
Determines the numeric value of a character as a hexidecimal
digit. Differs from <a class="link" href="glib-Unicode-Manipulation.html#g-unichar-xdigit-value" title="g_unichar_xdigit_value ()"><code class="function">g_unichar_xdigit_value()</code></a> because it takes
a char, so there's no worry about sign extension if characters
are signed.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>c</code></em> :</span></p></td>
<td> an ASCII character.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> If <em class="parameter"><code>c</code></em> is a hex digit (according to
<a class="link" href="glib-String-Utility-Functions.html#g-ascii-isxdigit" title="g_ascii_isxdigit ()"><code class="function">g_ascii_isxdigit()</code></a>), its numeric value. Otherwise, -1.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="g_ascii_strcasecmp ()">
<a name="g-ascii-strcasecmp"></a><h3>g_ascii_strcasecmp ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gint" title="gint">gint</a> g_ascii_strcasecmp (const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *s1,
const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *s2);</pre>
<p>
Compare two strings, ignoring the case of ASCII characters.
</p>
<p>
Unlike the BSD <code class="function">strcasecmp()</code> function, this only recognizes standard
ASCII letters and ignores the locale, treating all non-ASCII
bytes as if they are not letters.
</p>
<p>
This function should be used only on strings that are known to be
in encodings where the bytes corresponding to ASCII letters always
represent themselves. This includes UTF-8 and the ISO-8859-*
charsets, but not for instance double-byte encodings like the
Windows Codepage 932, where the trailing bytes of double-byte
characters include all ASCII letters. If you compare two CP932
strings using this function, you will get false matches.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>s1</code></em> :</span></p></td>
<td> string to compare with <em class="parameter"><code>s2</code></em>.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>s2</code></em> :</span></p></td>
<td> string to compare with <em class="parameter"><code>s1</code></em>.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> 0 if the strings match, a negative value if <em class="parameter"><code>s1</code></em> < <em class="parameter"><code>s2</code></em>,
or a positive value if <em class="parameter"><code>s1</code></em> > <em class="parameter"><code>s2</code></em>.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="g_ascii_strncasecmp ()">
<a name="g-ascii-strncasecmp"></a><h3>g_ascii_strncasecmp ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gint" title="gint">gint</a> g_ascii_strncasecmp (const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *s1,
const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *s2,
<a class="link" href="glib-Basic-Types.html#gsize" title="gsize">gsize</a> n);</pre>
<p>
Compare <em class="parameter"><code>s1</code></em> and <em class="parameter"><code>s2</code></em>, ignoring the case of ASCII characters and any
characters after the first <em class="parameter"><code>n</code></em> in each string.
</p>
<p>
Unlike the BSD <code class="function">strcasecmp()</code> function, this only recognizes standard
ASCII letters and ignores the locale, treating all non-ASCII
characters as if they are not letters.
</p>
<p>
The same warning as in <a class="link" href="glib-String-Utility-Functions.html#g-ascii-strcasecmp" title="g_ascii_strcasecmp ()"><code class="function">g_ascii_strcasecmp()</code></a> applies: Use this
function only on strings known to be in encodings where bytes
corresponding to ASCII letters always represent themselves.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>s1</code></em> :</span></p></td>
<td> string to compare with <em class="parameter"><code>s2</code></em>.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>s2</code></em> :</span></p></td>
<td> string to compare with <em class="parameter"><code>s1</code></em>.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>n</code></em> :</span></p></td>
<td> number of characters to compare.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> 0 if the strings match, a negative value if <em class="parameter"><code>s1</code></em> < <em class="parameter"><code>s2</code></em>,
or a positive value if <em class="parameter"><code>s1</code></em> > <em class="parameter"><code>s2</code></em>.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="g_ascii_strup ()">
<a name="g-ascii-strup"></a><h3>g_ascii_strup ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a>* g_ascii_strup (const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *str,
<a class="link" href="glib-Basic-Types.html#gssize" title="gssize">gssize</a> len);</pre>
<p>
Converts all lower case ASCII letters to upper case ASCII letters.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>str</code></em> :</span></p></td>
<td> a string.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>len</code></em> :</span></p></td>
<td> length of <em class="parameter"><code>str</code></em> in bytes, or -1 if <em class="parameter"><code>str</code></em> is nul-terminated.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> a newly allocated string, with all the lower case
characters in <em class="parameter"><code>str</code></em> converted to upper case, with
semantics that exactly match <a class="link" href="glib-String-Utility-Functions.html#g-ascii-toupper" title="g_ascii_toupper ()"><code class="function">g_ascii_toupper()</code></a>. (Note
that this is unlike the old <a class="link" href="glib-String-Utility-Functions.html#g-strup" title="g_strup ()"><code class="function">g_strup()</code></a>, which modified
the string in place.)
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="g_ascii_strdown ()">
<a name="g-ascii-strdown"></a><h3>g_ascii_strdown ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a>* g_ascii_strdown (const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *str,
<a class="link" href="glib-Basic-Types.html#gssize" title="gssize">gssize</a> len);</pre>
<p>
Converts all upper case ASCII letters to lower case ASCII letters.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>str</code></em> :</span></p></td>
<td> a string.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>len</code></em> :</span></p></td>
<td> length of <em class="parameter"><code>str</code></em> in bytes, or -1 if <em class="parameter"><code>str</code></em> is nul-terminated.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> a newly-allocated string, with all the upper case
characters in <em class="parameter"><code>str</code></em> converted to lower case, with
semantics that exactly match <a class="link" href="glib-String-Utility-Functions.html#g-ascii-tolower" title="g_ascii_tolower ()"><code class="function">g_ascii_tolower()</code></a>. (Note
that this is unlike the old <a class="link" href="glib-String-Utility-Functions.html#g-strdown" title="g_strdown ()"><code class="function">g_strdown()</code></a>, which modified
the string in place.)
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="g_ascii_tolower ()">
<a name="g-ascii-tolower"></a><h3>g_ascii_tolower ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> g_ascii_tolower (<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> c);</pre>
<p>
Convert a character to ASCII lower case.
</p>
<p>
Unlike the standard C library <code class="function">tolower()</code> function, this only
recognizes standard ASCII letters and ignores the locale, returning
all non-ASCII characters unchanged, even if they are lower case
letters in a particular character set. Also unlike the standard
library function, this takes and returns a char, not an int, so
don't call it on <code class="literal">EOF</code> but no need to worry about casting to <a class="link" href="glib-Basic-Types.html#guchar" title="guchar"><span class="type">guchar</span></a>
before passing a possibly non-ASCII character in.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>c</code></em> :</span></p></td>
<td> any character.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> the result of converting <em class="parameter"><code>c</code></em> to lower case.
If <em class="parameter"><code>c</code></em> is not an ASCII upper case letter,
<em class="parameter"><code>c</code></em> is returned unchanged.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="g_ascii_toupper ()">
<a name="g-ascii-toupper"></a><h3>g_ascii_toupper ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> g_ascii_toupper (<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> c);</pre>
<p>
Convert a character to ASCII upper case.
</p>
<p>
Unlike the standard C library <code class="function">toupper()</code> function, this only
recognizes standard ASCII letters and ignores the locale, returning
all non-ASCII characters unchanged, even if they are upper case
letters in a particular character set. Also unlike the standard
library function, this takes and returns a char, not an int, so
don't call it on <code class="literal">EOF</code> but no need to worry about casting to <a class="link" href="glib-Basic-Types.html#guchar" title="guchar"><span class="type">guchar</span></a>
before passing a possibly non-ASCII character in.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>c</code></em> :</span></p></td>
<td> any character.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> the result of converting <em class="parameter"><code>c</code></em> to upper case.
If <em class="parameter"><code>c</code></em> is not an ASCII lower case letter,
<em class="parameter"><code>c</code></em> is returned unchanged.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="g_string_ascii_up ()">
<a name="g-string-ascii-up"></a><h3>g_string_ascii_up ()</h3>
<pre class="programlisting"><a class="link" href="glib-Strings.html#GString" title="GString">GString</a>* g_string_ascii_up (<a class="link" href="glib-Strings.html#GString" title="GString">GString</a> *string);</pre>
<p>
Converts all lower case ASCII letters to upper case ASCII letters.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>string</code></em> :</span></p></td>
<td> a GString
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> passed-in <em class="parameter"><code>string</code></em> pointer, with all the lower case
characters converted to upper case in place, with
semantics that exactly match <a class="link" href="glib-String-Utility-Functions.html#g-ascii-toupper" title="g_ascii_toupper ()"><code class="function">g_ascii_toupper()</code></a>.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="g_string_ascii_down ()">
<a name="g-string-ascii-down"></a><h3>g_string_ascii_down ()</h3>
<pre class="programlisting"><a class="link" href="glib-Strings.html#GString" title="GString">GString</a>* g_string_ascii_down (<a class="link" href="glib-Strings.html#GString" title="GString">GString</a> *string);</pre>
<p>
Converts all upper case ASCII letters to lower case ASCII letters.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>string</code></em> :</span></p></td>
<td> a GString
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> passed-in <em class="parameter"><code>string</code></em> pointer, with all the upper case
characters converted to lower case in place, with
semantics that exactly match <a class="link" href="glib-String-Utility-Functions.html#g-ascii-tolower" title="g_ascii_tolower ()"><code class="function">g_ascii_tolower()</code></a>.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="g_strup ()">
<a name="g-strup"></a><h3>g_strup ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a>* g_strup (<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *string);</pre>
<div class="warning" title="Warning" style="margin-left: 0.5in; margin-right: 0.5in;">
<h3 class="title">Warning</h3>
<p><code class="literal">g_strup</code> has been deprecated since version 2.2 and should not be used in newly-written code. This function is totally broken for the reasons discussed
in the <a class="link" href="glib-String-Utility-Functions.html#g-strncasecmp" title="g_strncasecmp ()"><code class="function">g_strncasecmp()</code></a> docs - use <a class="link" href="glib-String-Utility-Functions.html#g-ascii-strup" title="g_ascii_strup ()"><code class="function">g_ascii_strup()</code></a> or <a class="link" href="glib-Unicode-Manipulation.html#g-utf8-strup" title="g_utf8_strup ()"><code class="function">g_utf8_strup()</code></a> instead.</p>
</div>
<p>
Converts a string to upper case.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>string</code></em> :</span></p></td>
<td> the string to convert.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> the string
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="g_strdown ()">
<a name="g-strdown"></a><h3>g_strdown ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a>* g_strdown (<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *string);</pre>
<div class="warning" title="Warning" style="margin-left: 0.5in; margin-right: 0.5in;">
<h3 class="title">Warning</h3>
<p><code class="literal">g_strdown</code> has been deprecated since version 2.2 and should not be used in newly-written code. This function is totally broken for the reasons discussed
in the <a class="link" href="glib-String-Utility-Functions.html#g-strncasecmp" title="g_strncasecmp ()"><code class="function">g_strncasecmp()</code></a> docs - use <a class="link" href="glib-String-Utility-Functions.html#g-ascii-strdown" title="g_ascii_strdown ()"><code class="function">g_ascii_strdown()</code></a> or <a class="link" href="glib-Unicode-Manipulation.html#g-utf8-strdown" title="g_utf8_strdown ()"><code class="function">g_utf8_strdown()</code></a>
instead.</p>
</div>
<p>
Converts a string to lower case.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>string</code></em> :</span></p></td>
<td> the string to convert.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> the string
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="g_strcasecmp ()">
<a name="g-strcasecmp"></a><h3>g_strcasecmp ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gint" title="gint">gint</a> g_strcasecmp (const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *s1,
const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *s2);</pre>
<div class="warning" title="Warning" style="margin-left: 0.5in; margin-right: 0.5in;">
<h3 class="title">Warning</h3>
<p><code class="literal">g_strcasecmp</code> has been deprecated since version 2.2 and should not be used in newly-written code. See <a class="link" href="glib-String-Utility-Functions.html#g-strncasecmp" title="g_strncasecmp ()"><code class="function">g_strncasecmp()</code></a> for a discussion of why this function
is deprecated and how to replace it.</p>
</div>
<p>
A case-insensitive string comparison, corresponding to the standard
<code class="function">strcasecmp()</code> function on platforms which support it.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>s1</code></em> :</span></p></td>
<td> a string.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>s2</code></em> :</span></p></td>
<td> a string to compare with <em class="parameter"><code>s1</code></em>.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> 0 if the strings match, a negative value if <em class="parameter"><code>s1</code></em> < <em class="parameter"><code>s2</code></em>,
or a positive value if <em class="parameter"><code>s1</code></em> > <em class="parameter"><code>s2</code></em>.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="g_strncasecmp ()">
<a name="g-strncasecmp"></a><h3>g_strncasecmp ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gint" title="gint">gint</a> g_strncasecmp (const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *s1,
const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *s2,
<a class="link" href="glib-Basic-Types.html#guint" title="guint">guint</a> n);</pre>
<div class="warning" title="Warning" style="margin-left: 0.5in; margin-right: 0.5in;">
<h3 class="title">Warning</h3>
<p><code class="literal">g_strncasecmp</code> has been deprecated since version 2.2 and should not be used in newly-written code. The problem with <a class="link" href="glib-String-Utility-Functions.html#g-strncasecmp" title="g_strncasecmp ()"><code class="function">g_strncasecmp()</code></a> is that it does the
comparison by calling <code class="function">toupper()</code>/<code class="function">tolower()</code>. These functions are
locale-specific and operate on single bytes. However, it is impossible
to handle things correctly from an I18N standpoint by operating on
bytes, since characters may be multibyte. Thus <a class="link" href="glib-String-Utility-Functions.html#g-strncasecmp" title="g_strncasecmp ()"><code class="function">g_strncasecmp()</code></a> is
broken if your string is guaranteed to be ASCII, since it's
locale-sensitive, and it's broken if your string is localized, since
it doesn't work on many encodings at all, including UTF-8, EUC-JP,
etc.
</p>
<p>
There are therefore two replacement functions: <a class="link" href="glib-String-Utility-Functions.html#g-ascii-strncasecmp" title="g_ascii_strncasecmp ()"><code class="function">g_ascii_strncasecmp()</code></a>,
which only works on ASCII and is not locale-sensitive, and
<a class="link" href="glib-Unicode-Manipulation.html#g-utf8-casefold" title="g_utf8_casefold ()"><code class="function">g_utf8_casefold()</code></a>, which is good for case-insensitive sorting of UTF-8.</p>
</div>
<p>
A case-insensitive string comparison, corresponding to the standard
<code class="function">strncasecmp()</code> function on platforms which support it.
It is similar to <a class="link" href="glib-String-Utility-Functions.html#g-strcasecmp" title="g_strcasecmp ()"><code class="function">g_strcasecmp()</code></a> except it only compares the first <em class="parameter"><code>n</code></em>
characters of the strings.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>s1</code></em> :</span></p></td>
<td> a string.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>s2</code></em> :</span></p></td>
<td> a string to compare with <em class="parameter"><code>s1</code></em>.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>n</code></em> :</span></p></td>
<td> the maximum number of characters to compare.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> 0 if the strings match, a negative value if <em class="parameter"><code>s1</code></em> < <em class="parameter"><code>s2</code></em>,
or a positive value if <em class="parameter"><code>s1</code></em> > <em class="parameter"><code>s2</code></em>.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="g_strreverse ()">
<a name="g-strreverse"></a><h3>g_strreverse ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a>* g_strreverse (<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *string);</pre>
<p>
Reverses all of the bytes in a string. For example,
<code class="literal">g_strreverse ("abcdef")</code> will result
in "fedcba".
</p>
<p>
Note that <a class="link" href="glib-String-Utility-Functions.html#g-strreverse" title="g_strreverse ()"><code class="function">g_strreverse()</code></a> doesn't work on UTF-8 strings
containing multibyte characters. For that purpose, use
<a class="link" href="glib-Unicode-Manipulation.html#g-utf8-strreverse" title="g_utf8_strreverse ()"><code class="function">g_utf8_strreverse()</code></a>.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>string</code></em> :</span></p></td>
<td> the string to reverse
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> the same pointer passed in as <em class="parameter"><code>string</code></em>
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="g_ascii_strtoll ()">
<a name="g-ascii-strtoll"></a><h3>g_ascii_strtoll ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gint64" title="gint64">gint64</a> g_ascii_strtoll (const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *nptr,
<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> **endptr,
<a class="link" href="glib-Basic-Types.html#guint" title="guint">guint</a> base);</pre>
<p>
Converts a string to a <a class="link" href="glib-Basic-Types.html#gint64" title="gint64"><span class="type">gint64</span></a> value.
This function behaves like the standard <code class="function">strtoll()</code> function
does in the C locale. It does this without actually
changing the current locale, since that would not be
thread-safe.
</p>
<p>
This function is typically used when reading configuration
files or other non-user input that should be locale independent.
To handle input from the user you should normally use the
locale-sensitive system <code class="function">strtoll()</code> function.
</p>
<p>
If the correct value would cause overflow, <a class="link" href="glib-Limits-of-Basic-Types.html#G-MAXINT64--CAPS" title="G_MAXINT64"><code class="literal">G_MAXINT64</code></a> or <a class="link" href="glib-Limits-of-Basic-Types.html#G-MININT64--CAPS" title="G_MININT64"><code class="literal">G_MININT64</code></a>
is returned, and <code class="literal">ERANGE</code> is stored in <code class="literal">errno</code>. If the base is
outside the valid range, zero is returned, and <code class="literal">EINVAL</code> is stored
in <code class="literal">errno</code>. If the string conversion fails, zero is returned, and
<em class="parameter"><code>endptr</code></em> returns <em class="parameter"><code>nptr</code></em> (if <em class="parameter"><code>endptr</code></em> is non-<a class="link" href="glib-Standard-Macros.html#NULL--CAPS" title="NULL"><code class="literal">NULL</code></a>).</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>nptr</code></em> :</span></p></td>
<td> the string to convert to a numeric value.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>endptr</code></em> :</span></p></td>
<td> if non-<a class="link" href="glib-Standard-Macros.html#NULL--CAPS" title="NULL"><code class="literal">NULL</code></a>, it returns the character after
the last character used in the conversion.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>base</code></em> :</span></p></td>
<td> to be used for the conversion, 2..36 or 0
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> the <a class="link" href="glib-Basic-Types.html#gint64" title="gint64"><span class="type">gint64</span></a> value or zero on error.
</td>
</tr>
</tbody>
</table></div>
<p class="since">Since 2.12</p>
</div>
<hr>
<div class="refsect2" title="g_ascii_strtoull ()">
<a name="g-ascii-strtoull"></a><h3>g_ascii_strtoull ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#guint64" title="guint64">guint64</a> g_ascii_strtoull (const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *nptr,
<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> **endptr,
<a class="link" href="glib-Basic-Types.html#guint" title="guint">guint</a> base);</pre>
<p>
Converts a string to a <a class="link" href="glib-Basic-Types.html#guint64" title="guint64"><span class="type">guint64</span></a> value.
This function behaves like the standard <code class="function">strtoull()</code> function
does in the C locale. It does this without actually
changing the current locale, since that would not be
thread-safe.
</p>
<p>
This function is typically used when reading configuration
files or other non-user input that should be locale independent.
To handle input from the user you should normally use the
locale-sensitive system <code class="function">strtoull()</code> function.
</p>
<p>
If the correct value would cause overflow, <a class="link" href="glib-Limits-of-Basic-Types.html#G-MAXUINT64--CAPS" title="G_MAXUINT64"><code class="literal">G_MAXUINT64</code></a>
is returned, and <code class="literal">ERANGE</code> is stored in <code class="literal">errno</code>. If the base is
outside the valid range, zero is returned, and <code class="literal">EINVAL</code> is stored
in <code class="literal">errno</code>. If the string conversion fails, zero is returned, and
<em class="parameter"><code>endptr</code></em> returns <em class="parameter"><code>nptr</code></em> (if <em class="parameter"><code>endptr</code></em> is non-<a class="link" href="glib-Standard-Macros.html#NULL--CAPS" title="NULL"><code class="literal">NULL</code></a>).</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>nptr</code></em> :</span></p></td>
<td> the string to convert to a numeric value.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>endptr</code></em> :</span></p></td>
<td> if non-<a class="link" href="glib-Standard-Macros.html#NULL--CAPS" title="NULL"><code class="literal">NULL</code></a>, it returns the character after
the last character used in the conversion.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>base</code></em> :</span></p></td>
<td> to be used for the conversion, 2..36 or 0
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> the <a class="link" href="glib-Basic-Types.html#guint64" title="guint64"><span class="type">guint64</span></a> value or zero on error.
</td>
</tr>
</tbody>
</table></div>
<p class="since">Since 2.2</p>
</div>
<hr>
<div class="refsect2" title="G_ASCII_DTOSTR_BUF_SIZE">
<a name="G-ASCII-DTOSTR-BUF-SIZE--CAPS"></a><h3>G_ASCII_DTOSTR_BUF_SIZE</h3>
<pre class="programlisting">#define G_ASCII_DTOSTR_BUF_SIZE</pre>
<p>
A good size for a buffer to be passed into <a class="link" href="glib-String-Utility-Functions.html#g-ascii-dtostr" title="g_ascii_dtostr ()"><code class="function">g_ascii_dtostr()</code></a>.
It is guaranteed to be enough for all output of that function on systems with
64bit IEEE-compatible doubles.
</p>
<p>
The typical usage would be something like:
</p>
<div class="informalexample"><pre class="programlisting">
char buf[G_ASCII_DTOSTR_BUF_SIZE];
fprintf (out, "value=%s\n", g_ascii_dtostr (buf, sizeof (buf), value));
</pre></div>
<p>
</p>
</div>
<hr>
<div class="refsect2" title="g_ascii_strtod ()">
<a name="g-ascii-strtod"></a><h3>g_ascii_strtod ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gdouble" title="gdouble">gdouble</a> g_ascii_strtod (const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *nptr,
<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> **endptr);</pre>
<p>
Converts a string to a <a class="link" href="glib-Basic-Types.html#gdouble" title="gdouble"><span class="type">gdouble</span></a> value.
</p>
<p>
This function behaves like the standard <code class="function">strtod()</code> function
does in the C locale. It does this without actually changing
the current locale, since that would not be thread-safe.
A limitation of the implementation is that this function
will still accept localized versions of infinities and NANs.
</p>
<p>
This function is typically used when reading configuration
files or other non-user input that should be locale independent.
To handle input from the user you should normally use the
locale-sensitive system <code class="function">strtod()</code> function.
</p>
<p>
To convert from a <a class="link" href="glib-Basic-Types.html#gdouble" title="gdouble"><span class="type">gdouble</span></a> to a string in a locale-insensitive
way, use <a class="link" href="glib-String-Utility-Functions.html#g-ascii-dtostr" title="g_ascii_dtostr ()"><code class="function">g_ascii_dtostr()</code></a>.
</p>
<p>
If the correct value would cause overflow, plus or minus <code class="literal">HUGE_VAL</code>
is returned (according to the sign of the value), and <code class="literal">ERANGE</code> is
stored in <code class="literal">errno</code>. If the correct value would cause underflow,
zero is returned and <code class="literal">ERANGE</code> is stored in <code class="literal">errno</code>.
</p>
<p>
This function resets <code class="literal">errno</code> before calling <code class="function">strtod()</code> so that
you can reliably detect overflow and underflow.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>nptr</code></em> :</span></p></td>
<td> the string to convert to a numeric value.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>endptr</code></em> :</span></p></td>
<td> if non-<a class="link" href="glib-Standard-Macros.html#NULL--CAPS" title="NULL"><code class="literal">NULL</code></a>, it returns the character after
the last character used in the conversion.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> the <a class="link" href="glib-Basic-Types.html#gdouble" title="gdouble"><span class="type">gdouble</span></a> value.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="g_ascii_dtostr ()">
<a name="g-ascii-dtostr"></a><h3>g_ascii_dtostr ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> * g_ascii_dtostr (<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *buffer,
<a class="link" href="glib-Basic-Types.html#gint" title="gint">gint</a> buf_len,
<a class="link" href="glib-Basic-Types.html#gdouble" title="gdouble">gdouble</a> d);</pre>
<p>
Converts a <a class="link" href="glib-Basic-Types.html#gdouble" title="gdouble"><span class="type">gdouble</span></a> to a string, using the '.' as
decimal point.
</p>
<p>
This functions generates enough precision that converting
the string back using <a class="link" href="glib-String-Utility-Functions.html#g-ascii-strtod" title="g_ascii_strtod ()"><code class="function">g_ascii_strtod()</code></a> gives the same machine-number
(on machines with IEEE compatible 64bit doubles). It is
guaranteed that the size of the resulting string will never
be larger than <em class="parameter"><code>G_ASCII_DTOSTR_BUF_SIZE</code></em> bytes.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>buffer</code></em> :</span></p></td>
<td> A buffer to place the resulting string in
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>buf_len</code></em> :</span></p></td>
<td> The length of the buffer.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>d</code></em> :</span></p></td>
<td> The <a class="link" href="glib-Basic-Types.html#gdouble" title="gdouble"><span class="type">gdouble</span></a> to convert
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> The pointer to the buffer with the converted string.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="g_ascii_formatd ()">
<a name="g-ascii-formatd"></a><h3>g_ascii_formatd ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> * g_ascii_formatd (<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *buffer,
<a class="link" href="glib-Basic-Types.html#gint" title="gint">gint</a> buf_len,
const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *format,
<a class="link" href="glib-Basic-Types.html#gdouble" title="gdouble">gdouble</a> d);</pre>
<p>
Converts a <a class="link" href="glib-Basic-Types.html#gdouble" title="gdouble"><span class="type">gdouble</span></a> to a string, using the '.' as
decimal point. To format the number you pass in
a <code class="function">printf()</code>-style format string. Allowed conversion
specifiers are 'e', 'E', 'f', 'F', 'g' and 'G'.
</p>
<p>
If you just want to want to serialize the value into a
string, use <a class="link" href="glib-String-Utility-Functions.html#g-ascii-dtostr" title="g_ascii_dtostr ()"><code class="function">g_ascii_dtostr()</code></a>.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>buffer</code></em> :</span></p></td>
<td> A buffer to place the resulting string in
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>buf_len</code></em> :</span></p></td>
<td> The length of the buffer.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>format</code></em> :</span></p></td>
<td> The <code class="function">printf()</code>-style format to use for the
code to use for converting.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>d</code></em> :</span></p></td>
<td> The <a class="link" href="glib-Basic-Types.html#gdouble" title="gdouble"><span class="type">gdouble</span></a> to convert
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> The pointer to the buffer with the converted string.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="g_strtod ()">
<a name="g-strtod"></a><h3>g_strtod ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gdouble" title="gdouble">gdouble</a> g_strtod (const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *nptr,
<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> **endptr);</pre>
<p>
Converts a string to a <a class="link" href="glib-Basic-Types.html#gdouble" title="gdouble"><span class="type">gdouble</span></a> value.
It calls the standard <code class="function">strtod()</code> function to handle the conversion, but
if the string is not completely converted it attempts the conversion
again with <a class="link" href="glib-String-Utility-Functions.html#g-ascii-strtod" title="g_ascii_strtod ()"><code class="function">g_ascii_strtod()</code></a>, and returns the best match.
</p>
<p>
This function should seldomly be used. The normal situation when reading
numbers not for human consumption is to use <a class="link" href="glib-String-Utility-Functions.html#g-ascii-strtod" title="g_ascii_strtod ()"><code class="function">g_ascii_strtod()</code></a>. Only when
you know that you must expect both locale formatted and C formatted numbers
should you use this. Make sure that you don't pass strings such as comma
separated lists of values, since the commas may be interpreted as a decimal
point in some locales, causing unexpected results.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>nptr</code></em> :</span></p></td>
<td> the string to convert to a numeric value.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>endptr</code></em> :</span></p></td>
<td> if non-<a class="link" href="glib-Standard-Macros.html#NULL--CAPS" title="NULL"><code class="literal">NULL</code></a>, it returns the character after
the last character used in the conversion.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> the <a class="link" href="glib-Basic-Types.html#gdouble" title="gdouble"><span class="type">gdouble</span></a> value.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="g_strchug ()">
<a name="g-strchug"></a><h3>g_strchug ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a>* g_strchug (<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *string);</pre>
<p>
Removes leading whitespace from a string, by moving the rest of the
characters forward.
</p>
<p>
This function doesn't allocate or reallocate any memory; it modifies <em class="parameter"><code>string</code></em>
in place. The pointer to <em class="parameter"><code>string</code></em> is returned to allow the nesting of functions.
</p>
<p>
Also see <a class="link" href="glib-String-Utility-Functions.html#g-strchomp" title="g_strchomp ()"><code class="function">g_strchomp()</code></a> and <a class="link" href="glib-String-Utility-Functions.html#g-strstrip" title="g_strstrip()"><code class="function">g_strstrip()</code></a>.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>string</code></em> :</span></p></td>
<td>a string to remove the leading whitespace from.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>@string.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="g_strchomp ()">
<a name="g-strchomp"></a><h3>g_strchomp ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a>* g_strchomp (<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *string);</pre>
<p>
Removes trailing whitespace from a string.
</p>
<p>
This function doesn't allocate or reallocate any memory; it modifies <em class="parameter"><code>string</code></em> in
place. The pointer to <em class="parameter"><code>string</code></em> is returned to allow the nesting of functions.
</p>
<p>
Also see <a class="link" href="glib-String-Utility-Functions.html#g-strchug" title="g_strchug ()"><code class="function">g_strchug()</code></a> and <a class="link" href="glib-String-Utility-Functions.html#g-strstrip" title="g_strstrip()"><code class="function">g_strstrip()</code></a>.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>string</code></em> :</span></p></td>
<td>a string to remove the trailing whitespace from.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>@string.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="g_strstrip()">
<a name="g-strstrip"></a><h3>g_strstrip()</h3>
<pre class="programlisting">#define g_strstrip( string )</pre>
<p>
Removes leading and trailing whitespace from a string. See <a class="link" href="glib-String-Utility-Functions.html#g-strchomp" title="g_strchomp ()"><code class="function">g_strchomp()</code></a> and
<a class="link" href="glib-String-Utility-Functions.html#g-strchug" title="g_strchug ()"><code class="function">g_strchug()</code></a>.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody><tr>
<td><p><span class="term"><em class="parameter"><code>string</code></em> :</span></p></td>
<td>a string to remove the leading and trailing whitespace from.
</td>
</tr></tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="g_strdelimit ()">
<a name="g-strdelimit"></a><h3>g_strdelimit ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a>* g_strdelimit (<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *string,
const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *delimiters,
<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> new_delimiter);</pre>
<p>
Converts any delimiter characters in <em class="parameter"><code>string</code></em> to <em class="parameter"><code>new_delimiter</code></em>.
Any characters in <em class="parameter"><code>string</code></em> which are found in <em class="parameter"><code>delimiters</code></em> are changed
to the <em class="parameter"><code>new_delimiter</code></em> character. Modifies <em class="parameter"><code>string</code></em> in place, and returns
<em class="parameter"><code>string</code></em> itself, not a copy. The return value is to allow nesting such as
<code class="literal">g_ascii_strup (g_strdelimit (str, "abc", '?'))</code>.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>string</code></em> :</span></p></td>
<td>the string to convert.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>delimiters</code></em> :</span></p></td>
<td>a string containing the current delimiters, or <a class="link" href="glib-Standard-Macros.html#NULL--CAPS" title="NULL"><code class="literal">NULL</code></a> to use the
standard delimiters defined in <a class="link" href="glib-String-Utility-Functions.html#G-STR-DELIMITERS--CAPS" title="G_STR_DELIMITERS"><span class="type">G_STR_DELIMITERS</span></a>.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>new_delimiter</code></em> :</span></p></td>
<td>the new delimiter character.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>@string.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="G_STR_DELIMITERS">
<a name="G-STR-DELIMITERS--CAPS"></a><h3>G_STR_DELIMITERS</h3>
<pre class="programlisting">#define G_STR_DELIMITERS</pre>
<p>
The standard delimiters, used in <a class="link" href="glib-String-Utility-Functions.html#g-strdelimit" title="g_strdelimit ()"><code class="function">g_strdelimit()</code></a>.
</p>
</div>
<hr>
<div class="refsect2" title="g_strescape ()">
<a name="g-strescape"></a><h3>g_strescape ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a>* g_strescape (const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *source,
const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *exceptions);</pre>
<p>
Escapes the special characters '\b', '\f', '\n', '\r', '\t', '\' and
'"' in the string <em class="parameter"><code>source</code></em> by inserting a '\' before
them. Additionally all characters in the range 0x01-0x1F (everything
below SPACE) and in the range 0x7F-0xFF (all non-ASCII chars) are
replaced with a '\' followed by their octal representation. Characters
supplied in <em class="parameter"><code>exceptions</code></em> are not escaped.
</p>
<p>
<a class="link" href="glib-String-Utility-Functions.html#g-strcompress" title="g_strcompress ()"><code class="function">g_strcompress()</code></a> does the reverse conversion.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>source</code></em> :</span></p></td>
<td>a string to escape.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>exceptions</code></em> :</span></p></td>
<td>a string of characters not to escape in <em class="parameter"><code>source</code></em>.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>a newly-allocated copy of <em class="parameter"><code>source</code></em> with certain
characters escaped. See above.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="g_strcompress ()">
<a name="g-strcompress"></a><h3>g_strcompress ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a>* g_strcompress (const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *source);</pre>
<p>
Replaces all escaped characters with their one byte equivalent. It
does the reverse conversion of <a class="link" href="glib-String-Utility-Functions.html#g-strescape" title="g_strescape ()"><code class="function">g_strescape()</code></a>.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>source</code></em> :</span></p></td>
<td>a string to compress.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>a newly-allocated copy of <em class="parameter"><code>source</code></em> with all escaped
character compressed.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="g_strcanon ()">
<a name="g-strcanon"></a><h3>g_strcanon ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a>* g_strcanon (<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *string,
const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *valid_chars,
<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> substitutor);</pre>
<p>
For each character in <em class="parameter"><code>string</code></em>, if the character is not in <em class="parameter"><code>valid_chars</code></em>,
replaces the character with <em class="parameter"><code>substitutor</code></em>. Modifies <em class="parameter"><code>string</code></em> in place,
and return <em class="parameter"><code>string</code></em> itself, not a copy. The return value is to allow
nesting such as <code class="literal">g_ascii_strup (g_strcanon (str, "abc", '?'))</code>.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>string</code></em> :</span></p></td>
<td>a nul-terminated array of bytes.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>valid_chars</code></em> :</span></p></td>
<td>bytes permitted in <em class="parameter"><code>string</code></em>.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>substitutor</code></em> :</span></p></td>
<td>replacement character for disallowed bytes.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>@string.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="g_strsplit ()">
<a name="g-strsplit"></a><h3>g_strsplit ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a>** g_strsplit (const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *string,
const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *delimiter,
<a class="link" href="glib-Basic-Types.html#gint" title="gint">gint</a> max_tokens);</pre>
<p>
Splits a string into a maximum of <em class="parameter"><code>max_tokens</code></em> pieces, using the given
<em class="parameter"><code>delimiter</code></em>. If <em class="parameter"><code>max_tokens</code></em> is reached, the remainder of <em class="parameter"><code>string</code></em> is appended
to the last token.
</p>
<p>
As a special case, the result of splitting the empty string "" is an empty
vector, not a vector containing a single string. The reason for this
special case is that being able to represent a empty vector is typically
more useful than consistent handling of empty elements. If you do need
to represent empty elements, you'll need to check for the empty string
before calling <a class="link" href="glib-String-Utility-Functions.html#g-strsplit" title="g_strsplit ()"><code class="function">g_strsplit()</code></a>.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>string</code></em> :</span></p></td>
<td> a string to split.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>delimiter</code></em> :</span></p></td>
<td> a string which specifies the places at which to split the string.
The delimiter is not included in any of the resulting strings, unless
<em class="parameter"><code>max_tokens</code></em> is reached.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>max_tokens</code></em> :</span></p></td>
<td> the maximum number of pieces to split <em class="parameter"><code>string</code></em> into. If this is
less than 1, the string is split completely.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> a newly-allocated <a class="link" href="glib-Standard-Macros.html#NULL--CAPS" title="NULL"><code class="literal">NULL</code></a>-terminated array of strings. Use
<a class="link" href="glib-String-Utility-Functions.html#g-strfreev" title="g_strfreev ()"><code class="function">g_strfreev()</code></a> to free it.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="g_strsplit_set ()">
<a name="g-strsplit-set"></a><h3>g_strsplit_set ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> ** g_strsplit_set (const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *string,
const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *delimiters,
<a class="link" href="glib-Basic-Types.html#gint" title="gint">gint</a> max_tokens);</pre>
<p>
Splits <em class="parameter"><code>string</code></em> into a number of tokens not containing any of the characters
in <em class="parameter"><code>delimiter</code></em>. A token is the (possibly empty) longest string that does not
contain any of the characters in <em class="parameter"><code>delimiters</code></em>. If <em class="parameter"><code>max_tokens</code></em> is reached, the
remainder is appended to the last token.
</p>
<p>
For example the result of g_strsplit_set ("abc:def/ghi", ":/", -1) is a
<a class="link" href="glib-Standard-Macros.html#NULL--CAPS" title="NULL"><code class="literal">NULL</code></a>-terminated vector containing the three strings "abc", "def",
and "ghi".
</p>
<p>
The result if g_strsplit_set (":def/ghi:", ":/", -1) is a <a class="link" href="glib-Standard-Macros.html#NULL--CAPS" title="NULL"><code class="literal">NULL</code></a>-terminated
vector containing the four strings "", "def", "ghi", and "".
</p>
<p>
As a special case, the result of splitting the empty string "" is an empty
vector, not a vector containing a single string. The reason for this
special case is that being able to represent a empty vector is typically
more useful than consistent handling of empty elements. If you do need
to represent empty elements, you'll need to check for the empty string
before calling <a class="link" href="glib-String-Utility-Functions.html#g-strsplit-set" title="g_strsplit_set ()"><code class="function">g_strsplit_set()</code></a>.
</p>
<p>
Note that this function works on bytes not characters, so it can't be used
to delimit UTF-8 strings for anything but ASCII characters.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>string</code></em> :</span></p></td>
<td> The string to be tokenized
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>delimiters</code></em> :</span></p></td>
<td> A nul-terminated string containing bytes that are used
to split the string.
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>max_tokens</code></em> :</span></p></td>
<td> The maximum number of tokens to split <em class="parameter"><code>string</code></em> into.
If this is less than 1, the string is split completely
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> a newly-allocated <a class="link" href="glib-Standard-Macros.html#NULL--CAPS" title="NULL"><code class="literal">NULL</code></a>-terminated array of strings. Use
<a class="link" href="glib-String-Utility-Functions.html#g-strfreev" title="g_strfreev ()"><code class="function">g_strfreev()</code></a> to free it.
</td>
</tr>
</tbody>
</table></div>
<p class="since">Since 2.4</p>
</div>
<hr>
<div class="refsect2" title="g_strfreev ()">
<a name="g-strfreev"></a><h3>g_strfreev ()</h3>
<pre class="programlisting">void g_strfreev (<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> **str_array);</pre>
<p>
Frees a <a class="link" href="glib-Standard-Macros.html#NULL--CAPS" title="NULL"><code class="literal">NULL</code></a>-terminated array of strings, and the array itself.
If called on a <a class="link" href="glib-Standard-Macros.html#NULL--CAPS" title="NULL"><code class="literal">NULL</code></a> value, <a class="link" href="glib-String-Utility-Functions.html#g-strfreev" title="g_strfreev ()"><code class="function">g_strfreev()</code></a> simply returns.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody><tr>
<td><p><span class="term"><em class="parameter"><code>str_array</code></em> :</span></p></td>
<td> a <a class="link" href="glib-Standard-Macros.html#NULL--CAPS" title="NULL"><code class="literal">NULL</code></a>-terminated array of strings to free.
</td>
</tr></tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="g_strconcat ()">
<a name="g-strconcat"></a><h3>g_strconcat ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a>* g_strconcat (const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *string1,
...);</pre>
<p>
Concatenates all of the given strings into one long string.
The returned string should be freed with <a class="link" href="glib-Memory-Allocation.html#g-free" title="g_free ()"><code class="function">g_free()</code></a> when no longer needed.
</p>
<p>
</p>
<div class="warning" title="Warning" style="margin-left: 0.5in; margin-right: 0.5in;">
<h3 class="title">Warning</h3>
<p>The variable argument list <span class="emphasis"><em>must</em></span> end
with <a class="link" href="glib-Standard-Macros.html#NULL--CAPS" title="NULL"><code class="literal">NULL</code></a>. If you forget the <a class="link" href="glib-Standard-Macros.html#NULL--CAPS" title="NULL"><code class="literal">NULL</code></a>, <a class="link" href="glib-String-Utility-Functions.html#g-strconcat" title="g_strconcat ()"><code class="function">g_strconcat()</code></a> will start appending
random memory junk to your string.</p>
</div>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>string1</code></em> :</span></p></td>
<td> the first string to add, which must not be <a class="link" href="glib-Standard-Macros.html#NULL--CAPS" title="NULL"><code class="literal">NULL</code></a>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>...</code></em> :</span></p></td>
<td> a <a class="link" href="glib-Standard-Macros.html#NULL--CAPS" title="NULL"><code class="literal">NULL</code></a>-terminated list of strings to append to the string
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> a newly-allocated string containing all the string arguments
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="g_strjoin ()">
<a name="g-strjoin"></a><h3>g_strjoin ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a>* g_strjoin (const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *separator,
...);</pre>
<p>
Joins a number of strings together to form one long string, with the
optional <em class="parameter"><code>separator</code></em> inserted between each of them. The returned string
should be freed with <a class="link" href="glib-Memory-Allocation.html#g-free" title="g_free ()"><code class="function">g_free()</code></a>.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>separator</code></em> :</span></p></td>
<td> a string to insert between each of the strings, or <a class="link" href="glib-Standard-Macros.html#NULL--CAPS" title="NULL"><code class="literal">NULL</code></a>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>...</code></em> :</span></p></td>
<td> a <a class="link" href="glib-Standard-Macros.html#NULL--CAPS" title="NULL"><code class="literal">NULL</code></a>-terminated list of strings to join
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> a newly-allocated string containing all of the strings joined
together, with <em class="parameter"><code>separator</code></em> between them
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="g_strjoinv ()">
<a name="g-strjoinv"></a><h3>g_strjoinv ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a>* g_strjoinv (const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> *separator,
<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> **str_array);</pre>
<p>
Joins a number of strings together to form one long string, with the
optional <em class="parameter"><code>separator</code></em> inserted between each of them. The returned string
should be freed with <a class="link" href="glib-Memory-Allocation.html#g-free" title="g_free ()"><code class="function">g_free()</code></a>.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>separator</code></em> :</span></p></td>
<td> a string to insert between each of the strings, or <a class="link" href="glib-Standard-Macros.html#NULL--CAPS" title="NULL"><code class="literal">NULL</code></a>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>str_array</code></em> :</span></p></td>
<td> a <a class="link" href="glib-Standard-Macros.html#NULL--CAPS" title="NULL"><code class="literal">NULL</code></a>-terminated array of strings to join
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> a newly-allocated string containing all of the strings joined
together, with <em class="parameter"><code>separator</code></em> between them
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="g_strv_length ()">
<a name="g-strv-length"></a><h3>g_strv_length ()</h3>
<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#guint" title="guint">guint</a> g_strv_length (<a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a> **str_array);</pre>
<p>
Returns the length of the given <a class="link" href="glib-Standard-Macros.html#NULL--CAPS" title="NULL"><code class="literal">NULL</code></a>-terminated
string array <em class="parameter"><code>str_array</code></em>.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>str_array</code></em> :</span></p></td>
<td> a <a class="link" href="glib-Standard-Macros.html#NULL--CAPS" title="NULL"><code class="literal">NULL</code></a>-terminated array of strings.
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> length of <em class="parameter"><code>str_array</code></em>.
</td>
</tr>
</tbody>
</table></div>
<p class="since">Since 2.6</p>
</div>
<hr>
<div class="refsect2" title="g_strerror ()">
<a name="g-strerror"></a><h3>g_strerror ()</h3>
<pre class="programlisting">const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a>* g_strerror (<a class="link" href="glib-Basic-Types.html#gint" title="gint">gint</a> errnum);</pre>
<p>
Returns a string corresponding to the given error code, e.g.
"no such process". You should use this function in preference to
<code class="function">strerror()</code>, because it returns a string in UTF-8 encoding, and since
not all platforms support the <code class="function">strerror()</code> function.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>errnum</code></em> :</span></p></td>
<td> the system error number. See the standard C <code class="literal">errno</code>
documentation
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> a UTF-8 string describing the error code. If the error code
is unknown, it returns "unknown error (<code>)". The string
can only be used until the next call to <a class="link" href="glib-String-Utility-Functions.html#g-strerror" title="g_strerror ()"><code class="function">g_strerror()</code></a>
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" title="g_strsignal ()">
<a name="g-strsignal"></a><h3>g_strsignal ()</h3>
<pre class="programlisting">const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar">gchar</a>* g_strsignal (<a class="link" href="glib-Basic-Types.html#gint" title="gint">gint</a> signum);</pre>
<p>
Returns a string describing the given signal, e.g. "Segmentation fault".
You should use this function in preference to <code class="function">strsignal()</code>, because it
returns a string in UTF-8 encoding, and since not all platforms support
the <code class="function">strsignal()</code> function.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>signum</code></em> :</span></p></td>
<td> the signal number. See the <code class="literal">signal</code>
documentation
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td> a UTF-8 string describing the signal. If the signal is unknown,
it returns "unknown signal (<signum>)". The string can only be
used until the next call to <a class="link" href="glib-String-Utility-Functions.html#g-strsignal" title="g_strsignal ()"><code class="function">g_strsignal()</code></a>
</td>
</tr>
</tbody>
</table></div>
</div>
</div>
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