Man page - wcsncasecmp(3)

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Manual

wcsncasecmp

NAME
LIBRARY
SYNOPSIS
DESCRIPTION
RETURN VALUE
ATTRIBUTES
STANDARDS
HISTORY
NOTES
SEE ALSO

NAME

wcsncasecmp - compare two fixed-size wide-character strings, ignoring case

LIBRARY

Standard C library ( libc , -lc )

SYNOPSIS

#include <wchar.h>

int wcsncasecmp(const wchar_t s1 [. n ], const wchar_t s2 [. n ], 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

DESCRIPTION

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)).

RETURN VALUE

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.

ATTRIBUTES

For an explanation of the terms used in this section, see attributes (7).

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STANDARDS

POSIX.1-2008.

HISTORY

glibc 2.1.

NOTES

The behavior of wcsncasecmp () depends on the LC_CTYPE category of the current locale.

SEE ALSO

strncasecmp (3), wcsncmp (3)