isascii man page on OpenBSD
[printable version]
ISASCII(3) OpenBSD Programmer's Manual ISASCII(3)
NAME
isascii - ASCII character test
SYNOPSIS
#include <ctype.h>
int
isascii(int c);
DESCRIPTION
The isascii() function tests for an ASCII character, which is any
character with a value less than or equal to 0177.
RETURN VALUES
The isascii() macro returns zero if the character tests false or non-zero
if the character tests true.
SEE ALSO
isalnum(3), isalpha(3), isblank(3), iscntrl(3), isdigit(3), isgraph(3),
islower(3), isprint(3), ispunct(3), isspace(3), isupper(3), isxdigit(3),
stdio(3), toascii(3), tolower(3), toupper(3), ascii(7)
STANDARDS
The isascii() function conforms to X/Open Portability Guide Issue 4
(``XPG4'').
CAVEATS
The argument to isascii() must be EOF or representable as an unsigned
char; otherwise, the result is undefined.
OpenBSD 4.9 May 31, 2007 OpenBSD 4.9
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