NAME

ispunct — punctuation character test

LIBRARY

Standard C Library (libc, -lc)

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 and returns non-zero if the character tests true.

SEE ALSO

ctype(3), 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”).

CAVEATS

The argument to ispunct() must be EOF or representable as an unsigned char; otherwise, the behavior is undefined. See the CAVEATS section of ctype(3) for more details.