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/*
* This file and its contents are supplied under the terms of the
* Common Development and Distribution License ("CDDL"), version 1.0.
* You may only use this file in accordance with the terms of version
* 1.0 of the CDDL.
*
* A full copy of the text of the CDDL should have accompanied this
* source. A copy of the CDDL is also available via the Internet at
* http://www.illumos.org/license/CDDL.
*/
/*
* Copyright 2020 Robert Mustacchi
*/
/*
* C11 c32rtomb(3C) support.
*
* The char32_t type is designed to represent a UTF-32 value, which is what we
* can represent with a wchar_t. This is basically a wrapper around wcrtomb().
*/
#include <locale.h>
#include <wchar.h>
#include <xlocale.h>
#include <uchar.h>
#include <errno.h>
#include "unicode.h"
static mbstate_t c32rtomb_state;
size_t
c32rtomb(char *restrict str, char32_t c32, mbstate_t *restrict ps)
{
if ((c32 >= UNICODE_SUR_MIN && c32 <= UNICODE_SUR_MAX) ||
c32 > UNICODE_SUP_MAX) {
errno = EILSEQ;
return ((size_t)-1);
}
if (ps == NULL) {
ps = &c32rtomb_state;
}
if (str == NULL) {
c32 = L'\0';
}
return (wcrtomb_l(str, (wchar_t)c32, ps, uselocale((locale_t)0)));
}
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