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Command: ispunct | Section: 3 | Source: OpenBSD | File: ispunct.3
ISPUNCT(3) FreeBSD Library Functions Manual ISPUNCT(3)
NAME
ispunct, ispunct_l - punctuation single-byte character test
SYNOPSIS
#include <ctype.h>
int
ispunct(int c);
int
ispunct_l(int c, locale_t locale);
DESCRIPTION
The ispunct() and ispunct_l() test for any punctuation characters.
In the C locale, the complete list of punctuation characters is:
!"#$%&'()*+,-./:;<=>?@[\]^_`{|}~
These are all characters for which isgraph(3) is true but isalnum(3) is
not. OpenBSD always uses the C locale for these functions, ignoring the
global locale, the thread-specific locale, and the locale argument.
RETURN VALUES
These functions return zero if the character tests false or non-zero if
the character tests true.
ENVIRONMENT
On systems supporting non-ASCII single-byte character encodings, results
of these functions may differ, and the results of ispunct() may depend on
the LC_CTYPE locale(1).
SEE ALSO
isalnum(3), isalpha(3), isascii(3), isblank(3), iscntrl(3), isdigit(3),
isgraph(3), islower(3), isprint(3), isspace(3), isupper(3), iswpunct(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"), and
ispunct_l() to IEEE Std 1003.1-2008 ("POSIX.1").
HISTORY
The ispunct() function first appeared in Version 7 AT&T UNIX, and
ispunct_l() has been available since OpenBSD 6.2.
CAVEATS
The argument c must be EOF or representable as an unsigned char;
otherwise, the result is undefined.
FreeBSD 14.1-RELEASE-p8 September 11, 2022 FreeBSD 14.1-RELEASE-p8