Section: Linux Programmer's Manual (3)
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wcsncasecmp - compare two fixed-size wide-character strings, ignoring case
int wcsncasecmp(const wchar_t *s1, const wchar_t *s2, size_t n);
Feature Test Macro Requirements for glibc (see
- Since glibc 2.10:
_XOPEN_SOURCE >= 700 || _POSIX_C_SOURCE >= 200809L
- Before glibc 2.10:
function is the wide-character equivalent of the
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
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.
function is provided in glibc since version 2.1.
This function is not specified in POSIX.1-2001,
and is not widely available on other systems.
The behavior of
depends on the
category of the
This page is part of release 3.27 of the Linux
A description of the project,
and information about reporting bugs,
can be found at
- RETURN VALUE
- CONFORMING TO
- SEE ALSO
This document was created by
using the manual pages.