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FUNCTION

	<>, <>---printable character predicates

	isprint

INDEX

	isgraph

	#include 

	int isprint(int <[c]>);

	int isgraph(int <[c]>);

	#include 

	int isprint(<[c]>);

	int isgraph(<[c]>);

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

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

characters, and 0 for other character arguments.

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

undefining either macro using `<<#undef isprint>>' or `<<#undef isgraph>>'.

<> returns non-zero if <[c]> is a printing character,

(<<0x20>>--<<0x7E>>).

<> behaves identically to <>, except that the space

character (<<0x20>>) is excluded.

<> and <> are ANSI C.

*/

#include 

int

_DEFUN(isgraph,(c),int c)

{

	return(__ctype_ptr__[c+1] & (_P|_U|_L|_N));

}

int

_DEFUN(isprint,(c),int c)

{

	return(__ctype_ptr__[c+1] & (_P|_U|_L|_N|_B));

}