isspace(3)
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ISSPACE(3) NetBSD Programmer's Manual ISSPACE(3)
NAME
isspace - white-space character test
LIBRARY
Standard C Library (libc, -lc)
SYNOPSIS
#include <ctype.h>
int
isspace(int c);
DESCRIPTION
The isspace() function tests for the standard white-space characters for
which isalnum(3) is false. The standard white-space characters are the
following:
` ' Space character.
\f Form feed.
\n New-line.
\r Carriage return.
\t Horizontal tab.
\v And vertical tab.
In the ``C'' locale, isspace() returns true only for the standard white-
space characters.
RETURN VALUES
The isspace() macro returns zero if the character tests false and returns
non-zero if the character tests true.
SEE ALSO
isalnum(3), isalpha(3), isascii(3), isblank(3), iscntrl(3), isdigit(3),
isgraph(3), islower(3), isprint(3), ispunct(3), isupper(3), isxdigit(3),
stdio(3), toascii(3), tolower(3), toupper(3), ascii(7)
STANDARDS
The isspace() function conforms to ANSI X3.159-1989 (``ANSI C'').
NetBSD 1.6 July 31, 1991 1
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