Subversion Repositories scarts

/*
FUNCTION
	<<iswxdigit>>---hexadecimal digit wide character test
 
INDEX
	iswxdigit
 
ANSI_SYNOPSIS
	#include <wctype.h>
	int iswxdigit(wint_t <[c]>);
 
TRAD_SYNOPSIS
	#include <wctype.h>
	int iswxdigit(<[c]>)
	wint_t <[c]>;
 
DESCRIPTION
<<iswxdigit>> is a function which classifies wide character values that
are hexadecimal digits.
 
RETURNS
<<iswxdigit>> returns non-zero if <[c]> is a hexadecimal digit wide character.
 
PORTABILITY
<<iswxdigit>> is C99.
 
No supporting OS subroutines are required.
*/
#include <_ansi.h>
#include <wctype.h>
 
int
_DEFUN(iswxdigit,(c), 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'));
}