WCSCASECMP
Section: Linux Programmer's Manual (3)
Updated: 2016-03-15
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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:
-
_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.
ATTRIBUTES
For an explanation of the terms used in this section, see
attributes(7).
| Interface | Attribute | Value
|
|
wcscasecmp()
| Thread safety | MT-Safe locale
|
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 4.13 of the Linux
man-pages
project.
A description of the project,
information about reporting bugs,
and the latest version of this page,
can be found at
https://www.kernel.org/doc/man-pages/.
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- RETURN VALUE
-
- VERSIONS
-
- ATTRIBUTES
-
- CONFORMING TO
-
- NOTES
-
- SEE ALSO
-
- COLOPHON
-
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