NAME

       wcsncasecmp - 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

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.

VERSIONS

       The wcsncasecmp() function is provided in glibc since version 2.1.

CONFORMING TO

       POSIX.1-2008.  This function is not specified in POSIX.1-2001, and  is  not  widely  available  on  other
       systems.

NOTES

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

SEE ALSO

       strncasecmp(3), wcsncmp(3)

COLOPHON

       This  page  is  part  of  release 3.54 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/.