iswalnum.c

来自「俄罗斯高人Mamaich的Pocket gcc编译器（运行在PocketPC上）」· C语言 代码 · 共 38 行

/*
FUNCTION
	<<iswalnum>>---alpha-numeric wide-character test

INDEX
	iswalnum

ANSI_SYNOPSIS
	#include <wctype.h>
	int iswalnum(wint_t <[c]>);

TRAD_SYNOPSIS
	#include <wctype.h>
	int iswalnum(<[c]>)
	wint_t <[c]>;

DESCRIPTION
<<iswalnum>> is a function which classifies wide-character values that
are alpha-numeric.

RETURNS
<<iswalnum>> returns non-zero if <[c]> is a alpha-numeric wide-character.

PORTABILITY
<<iswalnum>> is C99.

No supporting OS subroutines are required.
*/
#include <_ansi.h>
#include <wctype.h>

int
_DEFUN(iswalnum,(c),wint_t c)
{
  return (iswalpha (c) || iswdigit (c));
}