TOASCII(3)

TOASCII(3) | Library Functions Manual | TOASCII(3)

# 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.

April 30, 2010 | NetBSD 9.0