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ISPUNCT(3) Library Functions Manual ISPUNCT(3)

ispunctpunctuation character test

library “libc”

#include <ctype.h>

int
ispunct(int c);

The () function tests for any printing character except space (' ') or a character for which isalnum(3) is true.

The ispunct() function returns zero if the character tests false and returns non-zero if the character tests true.

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)

The ispunct() function conforms to ANSI X3.159-1989 (“ANSI C89”).

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.

April 17, 2008 NetBSD-9.2