Linux cli command wcsncasecmp

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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).

InterfaceAttributeValue

wcsncasecmp()

Thread safetyMT-Safe locale

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)

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