wcscasecmp - compare two wide-character strings, ignoring case
#include <wchar.h>
int wcscasecmp(const wchar_t *s1, const wchar_t *s2);Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
wcscasecmp():
- Since glibc 2.10:
_POSIX_C_SOURCE >= 200809L
- Before glibc 2.10:
_GNU_SOURCE
The wcscasecmp() function is the wide-character
equivalent of the strcasecmp(3) function. It compares
the wide-character string pointed to by s1 and the
wide-character string pointed to by s2, ignoring case
differences (towupper(3),
towlower(3)).
The wcscasecmp() function returns zero if the
wide-character strings at s1 and s2 are equal except
for case distinctions. It returns a positive integer if s1 is
greater than s2, ignoring case. It returns a negative integer
if s1 is smaller than s2, ignoring case.
The wcscasecmp() function is provided in glibc since version 2.1.
For an explanation of the terms used in this section, see attributes(7).
| Interface | Attribute | Value |
| wcscasecmp() | Thread safety | MT-Safe locale |
POSIX.1-2008. This function is not specified in POSIX.1-2001, and is not widely available on other systems.
The behavior of wcscasecmp() depends on the LC_CTYPE category of the current locale.
strcasecmp(3), wcscmp(3)
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