NAME
ispunct —
punctuation character test
SYNOPSIS
#include
<ctype.h>
int
ispunct(int
c);
DESCRIPTION
The
ispunct()
function tests for any printing character except space
(‘ ’) or a character for which
isalnum(3) is true.
RETURN VALUES
The ispunct() function returns zero if the
character tests false or non-zero if the character tests true.
SEE ALSO
isalnum(3), isalpha(3), isascii(3), isblank(3), iscntrl(3), isdigit(3), isgraph(3), islower(3), isprint(3), isspace(3), isupper(3), isxdigit(3), stdio(3), toascii(3), tolower(3), toupper(3), ascii(7)
STANDARDS
The ispunct() function conforms to
ANSI X3.159-1989
(“ANSI C89”).
HISTORY
The ispunct() function first appeared in
Version 7 AT&T UNIX.
CAVEATS
The argument to ispunct() must be
EOF or representable as an unsigned
char; otherwise, the result is undefined.