wcscasecmp (3)

Leading comments

Copyright (c) Bruno Haible <haible@clisp.cons.org>

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References consulted:
  GNU glibc-2 source code and manual
  Dinkumware C library reference http://www.dinkumware.com/
  OpenGroup's Single UNIX specificat...

(The comments found at the beginning of the groff file "man3/wcscasecmp.3".)

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.

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

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