@c ----------------------------------------------------------------------
@node isspace, ctype
@subheading Syntax

@example
#include <ctype.h>

int isspace(int c);
@end example

@subheading Description

Tells if @var{c} is whitespace, that is, carriage return, newline, form
feed, tab, vertical tab, or space.

@subheading Return Value

Nonzero if @var{c} is whitespace, else zero.


@subheading Portability

@portability ansi, posix