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ISPUNCT(3)               BSD Library Functions Manual               ISPUNCT(3)

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 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 (preceded by their numeric values, 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 ``~''

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

COMPATIBILITY
     The 4.4BSD extension of accepting arguments outside of the range of the unsigned char type in locales
     with large character sets is considered obsolete and may not be supported in future releases.  The
     iswpunct() function should be used instead.

SEE ALSO
     ctype(3), isalnum_l(3), iswpunct(3), multibyte(3), ascii(7)

STANDARDS
     The ispunct() function conforms to ISO/IEC 9899:1990 (``ISO C90'').

BSD                             August 21, 2004                            BSD