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/*

FUNCTION

<<ispunct>>---punctuation character predicate

INDEX

ispunct

ANSI_SYNOPSIS

#include <ctype.h>

int ispunct(int <[c]>);

TRAD_SYNOPSIS

#include <ctype.h>

int ispunct(<[c]>);

DESCRIPTION

<<ispunct>> is a macro which classifies ASCII integer values by table

lookup.  It is a predicate returning non-zero for printable

punctuation characters, and 0 for other characters.  It is defined

only when <<isascii>>(<[c]>) is true or <[c]> is EOF.

You can use a compiled subroutine instead of the macro definition by

undefining the macro using `<<#undef ispunct>>'.

RETURNS

<<ispunct>> returns non-zero if <[c]> is a printable punctuation character

(<<isgraph(<[c]>) && !isalnum(<[c]>)>>).

PORTABILITY

<<ispunct>> is ANSI C.

No supporting OS subroutines are required.

*/

#include <_ansi.h>

#include <ctype.h>

#undef ispunct

int

_DEFUN(ispunct,(c),int c)

{

        return((_ctype_ + 1)[c] & _P);

}