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WCSCASECMP(3) Linux Programmer's Manual 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:
_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)
GNU 2021-03-22 WCSCASECMP(3)