NAMEwcsncasecmp - compare two fixed-size wide-character strings, ignoring case
SYNOPSIS#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: _XOPEN_SOURCE >= 700 || _POSIX_C_SOURCE >= 200809L Before glibc 2.10: _GNU_SOURCE
DESCRIPTIONThe 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 VALUEThe 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.
VERSIONSThe wcsncasecmp() function is provided in glibc since version 2.1.
CONFORMING TOPOSIX.1-2008. This function is not specified in POSIX.1-2001, and is not widely available on other systems.
NOTESThe behavior of wcsncasecmp() depends on the LC_CTYPE category of the current locale.
SEE ALSOstrncasecmp(3), wcsncmp(3)
COLOPHONThis page is part of release 3.27 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at //www.kernel.org/doc/man-pages/. WCSNCASECMP(3)