NAME
toascii —
convert a byte to 7-bit
ASCII
LIBRARY
Standard C Library (libc, -lc)
SYNOPSIS
#include <ctype.h>
int
toascii(
int
c);
DESCRIPTION
The
toascii() function returns the argument with all but the
lower 7 bits cleared.
RETURN VALUES
The
toascii() function always returns a valid ASCII character.
The result is a non-negative integer in the range from 0 to 127, inclusive.
SEE ALSO
ctype(3),
isalnum(3),
isalpha(3),
isascii(3),
iscntrl(3),
isdigit(3),
isgraph(3),
islower(3),
isprint(3),
ispunct(3),
isspace(3),
isupper(3),
isxdigit(3),
stdio(3),
tolower(3),
toupper(3),
ascii(7)
STANDARDS
The
toascii() function conforms to
X/Open
Portability Guide Issue 4 (“XPG4”) and
IEEE Std 1003.1-2001 (“POSIX.1”). The
IEEE Std 1003.1-2008 (“POSIX.1”) revision
however marked it as obsolete, noting that
toascii() cannot
be used portably in a localized application.