ISSPACE
Section: C Library Functions (3)
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BSD mandoc
NAME
isspace
- white-space character test
SYNOPSIS
Fd #include <ctype.h>
Ft int
Fn isspace int c
DESCRIPTION
The
Fn 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,
Fn isspace
returns true only for the standard white-space characters.
RETURN VALUES
The
Fn 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),
toascii(3),
tolower(3),
toupper(3),
stdio(3),
ascii(7)
STANDARDS
The
Fn isspace
function conforms to
St -ansiC .
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- RETURN VALUES
-
- SEE ALSO
-
- STANDARDS
-
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Time: 21:44:10 GMT, August 05, 2022