ISLOWER
Section: C Library Functions (3)
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BSD mandoc
NAME
islower
- lower-case character test
SYNOPSIS
Fd #include <ctype.h>
Ft int
Fn islower int c
DESCRIPTION
The
Fn islower
function tests for any lower-case letter
for which none of
iscntrl(3),
isdigit(3),
ispunct(3),
or
isspace(3)
is true.
In the
``C''
locale,
Fn islower
returns true only for the characters defined as lower-case letters.
RETURN VALUES
The
Fn islower
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),
isprint(3),
ispunct(3),
isspace(3),
isupper(3),
isxdigit(3),
toascii(3),
tolower(3),
toupper(3),
stdio(3),
ascii(7)
STANDARDS
The
Fn islower
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