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uchar.h revision 1.1 
      1 /*	$NetBSD: uchar.h,v 1.1 2024/08/15 13:14:44 riastradh Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2024 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     17  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     18  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     19  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     20  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     21  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     22  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     23  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     24  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     25  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     26  * POSSIBILITY OF SUCH DAMAGE.
     27  */
     28 
     29 /*
     30  * C11, 7.28: Unicode utilities <uchar.h>
     31  *
     32  *	`1. The header <uchar.h> declares types and functions for
     33  *	    manipulating Unicode characters.'
     34  */
     35 
     36 #ifndef	_UCHAR_H
     37 #define	_UCHAR_H
     38 
     39 #include <sys/ansi.h>
     40 
     41 /*
     42  *	`2. The types declared are mbstate_t (described in 7.30.1) and
     43  *	    size_t (described in 7.19);
     44  *
     45  *	    	char16_t
     46  *
     47  *	    which is an unsigned integer type used for 16-bit
     48  *	    characters and is the same type as uint_least16_t
     49  *	    (described in 7.20.1.2); and
     50  *
     51  *		char32_t
     52  *
     53  *	    which is an unsigned integer type used for 32-bit
     54  *	    characters and is the same type as uint_least32_t (also
     55  *	    described in 7.20.1.2).'
     56  */
     57 
     58 #ifdef _BSD_MBSTATE_T_
     59 typedef _BSD_MBSTATE_T_	mbstate_t;
     60 #undef _BSD_MBSTATE_T_
     61 #endif
     62 
     63 #ifdef _BSD_SIZE_T_
     64 typedef _BSD_SIZE_T_	size_t;
     65 #undef _BSD_SIZE_T_
     66 #endif
     67 
     68 #if !defined(__cplusplus) || __cplusplus < 201103L
     69 typedef __UINT_LEAST16_TYPE__	char16_t;
     70 typedef __UINT_LEAST32_TYPE__	char32_t;
     71 #endif
     72 
     73 __BEGIN_DECLS
     74 
     75 size_t	mbrtoc16(char16_t *__restrict, const char *__restrict, size_t,
     76 	    mbstate_t *__restrict);
     77 size_t	c16rtomb(char *__restrict, char16_t, mbstate_t *__restrict);
     78 size_t	mbrtoc32(char32_t *__restrict, const char *__restrict, size_t,
     79 	    mbstate_t *__restrict);
     80 size_t	c32rtomb(char *__restrict, char32_t, mbstate_t *__restrict);
     81 
     82 __END_DECLS
     83 
     84 #endif	/* _UCHAR_H */
     85