ISSPACE(3) NEWLIB ISSPACE(3)NAME
3.9 `isspace'--whitespace character predicate
SYNOPSIS
#include <ctype.h>
int isspace(int C);
DESCRIPTION
`isspace' is a macro which classifies ASCII integer values by table
lookup. It is a predicate returning non-zero for whitespace charac‐
ters, and 0 for other characters. It is defined only when `isascii'(C)
is true or C is EOF.
You can use a compiled subroutine instead of the macro definition by
undefining the macro using ``#undef isspace''.
RETURNS
`isspace' returns non-zero if C is a space, tab, carriage return, new
line, vertical tab, or formfeed (`0x09'-`0x0D', `0x20').
PORTABILITY
`isspace' is ANSI C.
No supporting OS subroutines are required.
SEE ALSOisspace is part of the library. The full documentation for is main‐
tained as a Texinfo manual. If info and are properly installed at your
site, the command
info
will give you access to the complete manual.
NEWLIB April 2010 ISSPACE(3)
