HP 3000 Manuals

HP C/iX Library Reference Manual

ispunct 

Tests whether an argument is any printable character that is not a space,
a digit, or a letter.

Syntax 

     #include <ctype.h>
     int ispunct (int c);

Parameters 

c             An argument to be evaluated.  The argument must be
              representable as an unsigned char or the macro EOF.

Return Values 

!=0           The argument passed in c is any printable character that is
              not a space, a digit, or a letter.

0             The argument passed in c is not any printable character
              that is not a space, a digit, or a letter.

Description 

The ispunct function returns a nonzero value if the argument passed in c 
is any printable character that is not a space, a digit, or a letter;
otherwise, the returned value is zero.

See Also 

isalnum, isalpha, iscntrl, isdigit, isgraph, islower, isprint, isspace,
isupper, isxdigit, ANSI C 4.3.1.8, POSIX.1 8.1

MPE/iX 5.0 Documentation