HP 3000 Manuals

HP C/iX Library Reference Manual

isspace 

Tests whether an argument is a white-space character.

Syntax 

     #include <ctype.h>
     int isspace (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 a white-space character.

0             The argument passed in c is not a white-space character.

Description 

The isspace function returns a nonzero value if the argument passed in c 
is a white-space character (white-space characters are space, form feed,
newline, carriage return, horizontal tab, and vertical tab); otherwise,
the returned value is zero.

See Also 

isalnum, isalpha, iscntrl, isdigit, isgraph, islower, isprint, ispunct,
isupper, isxdigit.  ANSI C 4.3.1.9, POSIX.1 8.1

MPE/iX 5.0 Documentation