1 /*
2  * Copyright (C) 2014 The Android Open Source Project
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  *  * Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  *  * Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in
12  *    the documentation and/or other materials provided with the
13  *    distribution.
14  *
15  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
16  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
17  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
18  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19  * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
21  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
22  * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
23  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
24  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
25  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26  * SUCH DAMAGE.
27  */
28 
29 #ifndef _BIONIC_MBSTATE_H
30 #define _BIONIC_MBSTATE_H
31 
32 #include <wchar.h>
33 
34 __BEGIN_DECLS
35 
36 /*
37  * These return values are specified by POSIX for multibyte conversion
38  * functions.
39  */
40 #define __MB_ERR_ILLEGAL_SEQUENCE static_cast<size_t>(-1)
41 #define __MB_ERR_INCOMPLETE_SEQUENCE static_cast<size_t>(-2)
42 
43 #define __MB_IS_ERR(rv) (rv == __MB_ERR_ILLEGAL_SEQUENCE || \
44                          rv == __MB_ERR_INCOMPLETE_SEQUENCE)
45 
46 size_t mbstate_bytes_so_far(const mbstate_t* ps);
47 void mbstate_set_byte(mbstate_t* ps, int i, char byte);
48 uint8_t mbstate_get_byte(const mbstate_t* ps, int n);
49 size_t reset_and_return_illegal(int _errno, mbstate_t* ps);
50 size_t reset_and_return(int _return, mbstate_t* ps);
51 
52 __END_DECLS
53 
54 #endif // _BIONIC_MBSTATE_H
55