iscntrl man page on BSDi
[printable version]
ISCNTRL(3) BSD Programmer's Manual ISCNTRL(3)
NAME
iscntrl - control character test
SYNOPSIS
#include <ctype.h>
int
iscntrl(int c);
DESCRIPTION
The iscntrl() function tests for any control character.
RETURN VALUES
The iscntrl() macro returns zero if the character tests false and returns
non-zero if the character tests true.
SEE ALSO
isascii(3), isalnum(3), isalpha(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 iscntrl() function conforms to ANSI C X3.159-1989 (``ANSI C '').
BSDI BSD/OS June 29, 1991 1
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