ispunct -- punctuation character test
Standard C Library (libc, -lc)
#include <ctype.h>
int
ispunct(int c);
The ispunct() function tests for any printing character except for space
(` ') or a character for which isalnum(3) is true. For single C chars
locales (see multibyte(3)) the value of the argument is representable as
an unsigned char or the value of EOF. In the ASCII character set, this
includes the following characters (with their numeric values shown in
octal):
041 ``!'' 042 ``"'' 043 ``#'' 044 ``$'' 045 ``%''
046 ``&'' 047 ``''' 050 ``('' 051 ``)'' 052 ``*''
053 ``+'' 054 ``,'' 055 ``-'' 056 ``.'' 057 ``/''
072 ``:'' 073 ``;'' 074 ``<'' 075 ``='' 076 ``>''
077 ``?'' 100 ``@'' 133 ``['' 134 ``\'' 135 ``]''
136 ``^'' 137 ``_'' 140 ```'' 173 ``{'' 174 ``|''
175 ``}'' 176 ``~''
The ispunct() function returns zero if the character tests false and
returns non-zero if the character tests true.
Although ispunct() accepts arguments outside of the range of the unsigned
char type in locales with large character sets, this is a 4.4BSD extension
and the iswpunct() function should be used instead for maximum
portability.
ctype(3), iswpunct(3), multibyte(3), ascii(7)
The ispunct() function conforms to ISO/IEC 9899:1990 (``ISO C89'').
FreeBSD 5.2.1 October 6, 2002 FreeBSD 5.2.1 [ Back ] |