wcscasecmp - compare two wide-character strings, ignoring case
Standard C library (
libc,
-lc)
#include <wchar.h>
int wcscasecmp(const wchar_t *s1, const wchar_t *s2);
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 since glibc 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)