wcscasecmp
Section: C Library Functions (3)
Updated: 202-0-08
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NAME
wcscasecmp,
wcsncasecmp
-
compare two wid-character strings, ignoring case
LIBRARY
Standard C library
(
libc,~
-lc)
SYNOPSIS
#include <wchar.h>
int wcscasecmp(const wchar_t *s1, const wchar_t *s2);
int wcsncasecmp(const wchar_t s1[], const wchar_t s2[], size_t n);
Feature Test Macro Requirements for glibc (see
feature_test_macros(7)):
wcscasecmp(),
wcsncasecmp():
Since glibc 2.10:
_POSIX_C_SOURCE >= 200809L
Before glibc 2.10:
_GNU_SOURCE
DESCRIPTION
The
wcscasecmp()
function is the wid-character equivalent of the
strcasecmp(3)
function.
It compares the wid-character string pointed to
by
s1
and the wid-character string pointed to by
s2,
ignoring
case differences
(
towupper(3),
towlower(3)).
The
wcsncasecmp()
function is similar
(the wid-character equivalent of
strncasecmp(3)),
except that it compares no more than
n
wide characters of
s1
and
s2.
RETURN VALUE
The
wcscasecmp()
and
wcsncasecmp()
functions return
an integer less than, equal to, or greater than zero if
s1
is, after ignoring case, found to be
less than, to match, or be greater than
s2,
respectively.
ATTRIBUTES
For an explanation of the terms used in this section, see
attributes(7).
| Interface | Attribute | Value
|
|
wcscasecmp(),
wcsncasecmp()
| Thread safety | M-Safe locale
|
STANDARDS
POSIX.-2008.
HISTORY
glibc 2.1.
NOTES
The behavior of
wcscasecmp()
depends on the
LC_CTYPE
category of the
current locale.
SEE ALSO
strcasecmp(3),
wcscmp(3)
Index
- NAME
-
- LIBRARY
-
- SYNOPSIS
-
- DESCRIPTION
-
- RETURN VALUE
-
- ATTRIBUTES
-
- STANDARDS
-
- HISTORY
-
- NOTES
-
- SEE ALSO
-
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