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/*
FUNCTION
<<iswalnum>>, <<iswalnum_l>>---alphanumeric wide character test
INDEX
iswalnum
INDEX
iswalnum_l
SYNOPSIS
#include <wctype.h>
int iswalnum(wint_t <[c]>);
#include <wctype.h>
int iswalnum_l(wint_t <[c]>, locale_t <[locale]>);
DESCRIPTION
<<iswalnum>> is a function which classifies wide-character values that
are alphanumeric.
<<iswalnum_l>> is like <<iswalnum>> 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
<<iswalnum>>, <<iswalnum_l>> return non-zero if <[c]> is a alphanumeric
wide character.
PORTABILITY
<<iswalnum>> is C99.
<<iswalnum_l>> is POSIX-1.2008.
No supporting OS subroutines are required.
*/
#include <_ansi.h>
#include <wctype.h>
int
_DEFUN(iswalnum,(c),wint_t c)
{
return (iswalpha (c) || iswdigit (c));
}
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