wcsncasecmp—case-insensitive wide character string compare #include <wchar.h>
int wcsncasecmp(const wchar_t *a, const wchar_t * b, size_t length);
Description
wcsncasecmp compares up to length wide characters
from the string at a to the string at b in a
case-insensitive manner.
Returns
If *a sorts lexicographically after *b (after
both are converted to uppercase), wcsncasecmp returns a
number greater than zero. If the two strings are equivalent,
wcsncasecmp returns zero. If *a sorts
lexicographically before *b, wcsncasecmp returns a
number less than zero.
Portability
POSIX-1.2008
wcsncasecmp requires no supporting OS subroutines. It uses
tolower() from elsewhere in this library.