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/*
FUNCTION
<<isprint>>, <<isgraph>>, <<isprint_l>>, <<isgraph_l>>---printable character predicates
INDEX
isprint
INDEX
isgraph
INDEX
isprint_l
INDEX
isgraph_l
SYNOPSIS
#include <ctype.h>
int isprint(int <[c]>);
int isgraph(int <[c]>);
#include <ctype.h>
int isprint_l(int <[c]>, locale_t <[locale]>);
int isgraph_l(int <[c]>, locale_t <[locale]>);
DESCRIPTION
<<isprint>> is a macro which classifies singlebyte charset values by table
lookup. It is a predicate returning non-zero for printable characters,
and 0 for other character arguments. It is defined only if <[c]> is
representable as an unsigned char or if <[c]> is EOF.
<<isgraph>> behaves identically to <<isprint>>, except that space characters
are excluded.
<<isprint_l>>, <<isgraph_l>> are like <<isprint>>, <<isgraph>> but perform
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.
You can use a compiled subroutine instead of the macro definition by
undefining either macro using `<<#undef isprint>>' or `<<#undef isgraph>>',
or `<<#undef isprint_l>>' or `<<#undef isgraph_l>>'.
RETURNS
<<isprint>>, <<isprint_l>> return non-zero if <[c]> is a printing character.
<<isgraph>>, <<isgraph_l>> return non-zero if <[c]> is a printing character
except spaces.
PORTABILITY
<<isprint>> and <<isgraph>> are ANSI C.
No supporting OS subroutines are required.
*/
#include <_ansi.h>
#include <ctype.h>
#undef isgraph
int
isgraph (int c)
{
return(__CTYPE_PTR[c+1] & (_P|_U|_L|_N));
}
#undef isprint
int
isprint (int c)
{
return(__CTYPE_PTR[c+1] & (_P|_U|_L|_N|_B));
}
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