NAME
btowc, btowc_l,
wctob, wctob_l —
convert between wide and single-byte
characters
LIBRARY
library “libc”
SYNOPSIS
#include
<wchar.h>
wint_t
btowc(int
c);
int
wctob(wint_t
c);
#include <wchar.h>
#include <xlocale.h>
wint_t
btowc_l(int
c, locale_t
loc);
int
wctob_l(wint_t
c, locale_t
loc);
DESCRIPTION
Thebtowc()
function converts a single-byte character into a corresponding wide character.
If the character is EOF or not valid in the initial
shift state, btowc() returns
WEOF.
The
wctob()
function converts a wide character into a corresponding single-byte
character. If the wide character is WEOF or not able
to be represented as a single byte in the initial shift state,
wctob() returns EOF.
The _l-suffixed versions take an explicit locale argument, while the non-suffixed versions use the current global or per-thread locale.
SEE ALSO
STANDARDS
The btowc() and
wctob() functions conform to IEEE
Std 1003.1-2001 (“POSIX.1”).
HISTORY
The btowc() and
wctob() functions first appeared in
FreeBSD 5.0.