ISALNUM
Section: C Library Functions (3)
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BSD mandoc
NAME
isalnum
- alphanumeric character test
SYNOPSIS
Fd #include <ctype.h>
Ft int
Fn isalnum int c
DESCRIPTION
The
Fn isalnum
macro tests for any character for which
isalpha(3)
or
isdigit(3)
is true.
RETURN VALUES
The
Fn isalnum
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 isalnum
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