WCSCASECMP
Section: Linux Programmer's Manual (3)
Updated: 2010-09-15
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NAME
wcscasecmp - compare two wide-character strings, ignoring case
SYNOPSIS
#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:
-
_XOPEN_SOURCE >= 700 || _POSIX_C_SOURCE >= 200809L
- Before glibc 2.10:
-
_GNU_SOURCE
DESCRIPTION
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)).
RETURN VALUE
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.
VERSIONS
The
wcscasecmp()
function is provided in glibc since version 2.1.
CONFORMING TO
POSIX.1-2008.
This function is not specified in POSIX.1-2001,
and is not widely available on other systems.
NOTES
The behavior of
wcscasecmp()
depends on the
LC_CTYPE
category of the
current locale.
SEE ALSO
strcasecmp(3),
wcscmp(3)
COLOPHON
This page is part of release 3.27 of the Linux
man-pages
project.
A description of the project,
and information about reporting bugs,
can be found at
http://www.kernel.org/doc/man-pages/.
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- RETURN VALUE
-
- VERSIONS
-
- CONFORMING TO
-
- NOTES
-
- SEE ALSO
-
- COLOPHON
-
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