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/*
FUNCTION
<<iswxdigit>>, <<iswxdigit_l>>---hexadecimal digit wide character test
INDEX
iswxdigit
INDEX
iswxdigit_l
SYNOPSIS
#include <wctype.h>
int iswxdigit(wint_t <[c]>);
#include <wctype.h>
int iswxdigit_l(wint_t <[c]>, locale_t <[locale]>);
DESCRIPTION
<<iswxdigit>> is a function which classifies wide character values that
are hexadecimal digits.
<<iswxdigit_l>> is like <<iswxdigit>> but performs the check based on the
locale specified by the locale object locale. If <[locale]> is
LC_GLOBAL_LOCALE or not a valid locale object, the behaviour is undefined.
RETURNS
<<iswxdigit>>, <<iswxdigit_l>> return non-zero if <[c]> is a hexadecimal digit wide character.
PORTABILITY
<<iswxdigit>> is C99.
<<iswxdigit_l>> is POSIX-1.2008.
No supporting OS subroutines are required.
*/
#include <_ansi.h>
#include <wctype.h>
int
iswxdigit (wint_t c)
{
return ((c >= (wint_t)'0' && c <= (wint_t)'9') ||
(c >= (wint_t)'a' && c <= (wint_t)'f') ||
(c >= (wint_t)'A' && c <= (wint_t)'F'));
}
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