wcscasecmp(3) Library Functions Manual wcscasecmp(3)
NAME
wcscasecmp - compare two wide-character strings, ignoring case
LIBRARY
Standard C library (libc, -lc)
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 str-
casecmp(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 posi-
tive 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 since glibc 2.1.
ATTRIBUTES
For an explanation of the terms used in this section, see at-
tributes(7).
┌─────────────────────────────────────┬───────────────┬────────────────┐
│Interface │ Attribute │ Value │
├─────────────────────────────────────┼───────────────┼────────────────┤
│wcscasecmp() │ Thread safety │ MT-Safe locale │
└─────────────────────────────────────┴───────────────┴────────────────┘
STANDARDS
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)
Linux man-pages 6.03 2022-12-15 wcscasecmp(3)
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