|WCSNCASECMP(3)||Linux Programmer's Manual||WCSNCASECMP(3)|
NAMEwcsncasecmp - 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 feature_test_macros(7)):
- Since glibc 2.10:
- _XOPEN_SOURCE >= 700 || _POSIX_C_SOURCE >= 200809L
- Before glibc 2.10:
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 3.53 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/.