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NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | VERSIONS | ATTRIBUTES | CONFORMING TO | NOTES | SEE ALSO | COLOPHON |
WCSNCASECMP(3) Linux Programmer's Manual WCSNCASECMP(3)
wcsncasecmp - compare two fixed-size wide-character strings, ignoring
case
#include <wchar.h>
int wcsncasecmp(const wchar_t *s1, const wchar_t *s2, size_t n);
Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
wcsncasecmp():
Since glibc 2.10:
_POSIX_C_SOURCE >= 200809L
Before glibc 2.10:
_GNU_SOURCE
The wcsncasecmp() function is the wide-character equivalent of the
strncasecmp(3) function. It compares the wide-character string
pointed to by s1 and the wide-character string pointed to by s2, but
at most n wide characters from each string, ignoring case differences
(towupper(3), towlower(3)).
The wcsncasecmp() function returns zero if the wide-character strings
at s1 and s2, truncated to at most length n, are equal except for
case distinctions. It returns a positive integer if truncated s1 is
greater than truncated s2, ignoring case. It returns a negative
integer if truncated s1 is smaller than truncated s2, ignoring case.
The wcsncasecmp() function is provided in glibc since version 2.1.
For an explanation of the terms used in this section, see
attributes(7).
┌──────────────┬───────────────┬────────────────┐
│Interface │ Attribute │ Value │
├──────────────┼───────────────┼────────────────┤
│wcsncasecmp() │ Thread safety │ MT-Safe locale │
└──────────────┴───────────────┴────────────────┘
POSIX.1-2008. This function is not specified in POSIX.1-2001, and is
not widely available on other systems.
The behavior of wcsncasecmp() depends on the LC_CTYPE category of the
current locale.
strncasecmp(3), wcsncmp(3)
This page is part of release 4.12 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/.
GNU 2016-03-15 WCSNCASECMP(3)
Pages that refer to this page: strcasecmp(3), wcsncmp(3)