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/*
FUNCTION
<<wcscasecmp>>---case-insensitive wide character string compare
INDEX
wcscasecmp
ANSI_SYNOPSIS
#include <wchar.h>
int wcscasecmp(const wchar_t *<[a]>, const wchar_t *<[b]>);
TRAD_SYNOPSIS
#include <wchar.h>
int wcscasecmp(<[a]>, <[b]>)
wchar_t *<[a]>;
wchar_t *<[b]>;
DESCRIPTION
<<wcscasecmp>> compares the wide character string at <[a]> to
the wide character string at <[b]> in a case-insensitive manner.
RETURNS
If <<*<[a]>>> sorts lexicographically after <<*<[b]>>> (after
both are converted to uppercase), <<wcscasecmp>> returns a
number greater than zero. If the two strings match,
<<wcscasecmp>> returns zero. If <<*<[a]>>> sorts
lexicographically before <<*<[b]>>>, <<wcscasecmp>> returns a
number less than zero.
PORTABILITY
POSIX-1.2008
<<wcscasecmp>> requires no supporting OS subroutines. It uses
tolower() from elsewhere in this library.
QUICKREF
wcscasecmp
*/
#include <wchar.h>
#include <wctype.h>
int
_DEFUN (wcscasecmp, (s1, s2),
_CONST wchar_t *s1 _AND
_CONST wchar_t *s2)
{
while (*s1 != '\0' && towlower(*s1) == towlower(*s2))
{
s1++;
s2++;
}
return towlower(*s1) - towlower(*s2);
}
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