ISDIGIT
Section: C Library Functions (3)
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BSD mandoc
NAME
isdigit
- decimal-digit character test
SYNOPSIS
Fd #include <ctype.h>
Ft int
Fn isdigit int c
DESCRIPTION
The
Fn isdigit
function tests for any decimal-digit character.
RETURN VALUES
The
Fn isdigit
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),
isspace(3),
isupper(3),
isxdigit(3),
toascii(3),
tolower(3),
toupper(3),
stdio(3),
ascii(7)
STANDARDS
The
Fn isdigit
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