NAME
ispunct —
punctuation character test
LIBRARY
library “libc”
SYNOPSIS
#include
<ctype.h>
int
ispunct(int
c);
DESCRIPTION
Theispunct()
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.