xref: /titanic_51/usr/src/lib/iconv_modules/common/ucs2.h (revision 91e1e26ac6a73ce959289cf7d3d96c4baedbe0b8)
1*91e1e26aSAlexander Pyhalov /*
2*91e1e26aSAlexander Pyhalov  * CDDL HEADER START
3*91e1e26aSAlexander Pyhalov  *
4*91e1e26aSAlexander Pyhalov  * The contents of this file are subject to the terms of the
5*91e1e26aSAlexander Pyhalov  * Common Development and Distribution License (the "License").
6*91e1e26aSAlexander Pyhalov  * You may not use this file except in compliance with the License.
7*91e1e26aSAlexander Pyhalov  *
8*91e1e26aSAlexander Pyhalov  * You can obtain a copy of the license at src/OPENSOLARIS.LICENSE
9*91e1e26aSAlexander Pyhalov  * or http://www.opensolaris.org/os/licensing.
10*91e1e26aSAlexander Pyhalov  * See the License for the specific language governing permissions
11*91e1e26aSAlexander Pyhalov  * and limitations under the License.
12*91e1e26aSAlexander Pyhalov  *
13*91e1e26aSAlexander Pyhalov  * When distributing Covered Code, include this CDDL HEADER in each
14*91e1e26aSAlexander Pyhalov  * file and include the License file at src/OPENSOLARIS.LICENSE.
15*91e1e26aSAlexander Pyhalov  * If applicable, add the following below this CDDL HEADER, with the
16*91e1e26aSAlexander Pyhalov  * fields enclosed by brackets "[]" replaced with your own identifying
17*91e1e26aSAlexander Pyhalov  * information: Portions Copyright [yyyy] [name of copyright owner]
18*91e1e26aSAlexander Pyhalov  *
19*91e1e26aSAlexander Pyhalov  * CDDL HEADER END
20*91e1e26aSAlexander Pyhalov  */
21*91e1e26aSAlexander Pyhalov 
22*91e1e26aSAlexander Pyhalov /*
23*91e1e26aSAlexander Pyhalov  * Copyright 1998 Sun Microsystems, Inc.  All rights reserved.
24*91e1e26aSAlexander Pyhalov  * Use is subject to license terms.
25*91e1e26aSAlexander Pyhalov  */
26*91e1e26aSAlexander Pyhalov 
27*91e1e26aSAlexander Pyhalov #ifndef UCS2_H
28*91e1e26aSAlexander Pyhalov #define UCS2_H
29*91e1e26aSAlexander Pyhalov #include <sys/types.h>
30*91e1e26aSAlexander Pyhalov #include <sys/isa_defs.h>
31*91e1e26aSAlexander Pyhalov #include "gentypes.h"
32*91e1e26aSAlexander Pyhalov 
33*91e1e26aSAlexander Pyhalov #define UCS2_NBYTE	2
34*91e1e26aSAlexander Pyhalov #define UCS2_MAXVAL	0xfffd
35*91e1e26aSAlexander Pyhalov 
36*91e1e26aSAlexander Pyhalov #define valid_ucs2_value(n)		(_valid_ucs2_value(n))
37*91e1e26aSAlexander Pyhalov #define room_for_ucs2_cnv(p1,p2)	(((p1)+sizeof(ucs2_t))<=(p2))
38*91e1e26aSAlexander Pyhalov #define no_room_for_ucs2_cnv(p1,p2) 	(((p1)+sizeof(ucs2_t))>(p2))
39*91e1e26aSAlexander Pyhalov #define incomplete_ucs2_seq(p1,p2) 	(((p1)+sizeof(ucs2_t))>(p2))
40*91e1e26aSAlexander Pyhalov 
41*91e1e26aSAlexander Pyhalov #define next_ucs2_ptr(p)    (((uchar_t*)(p))+sizeof(ucs2_t))
42*91e1e26aSAlexander Pyhalov #define ext_ucs2_lsb(n)	    ((uchar_t)(((ucs2_t)(n))&((ucs2_t)0x00ff)))
43*91e1e26aSAlexander Pyhalov #define ext_ucs2_msb(n)	    ((uchar_t)(((((ucs2_t)(n))&((ucs2_t)0xff00)))>>8))
44*91e1e26aSAlexander Pyhalov 
45*91e1e26aSAlexander Pyhalov #define get_ucs2_word(p)        (*((ucs2_t*)(p)))
46*91e1e26aSAlexander Pyhalov #define set_ucs2_word(p,n)	((*((ucs2_t*)(p)))=(n))
47*91e1e26aSAlexander Pyhalov 
48*91e1e26aSAlexander Pyhalov #if defined(_BIG_ENDIAN)
49*91e1e26aSAlexander Pyhalov #define get_ucs2_word_BB(p) \
50*91e1e26aSAlexander Pyhalov 	(((ucs2_t)((*(p))<<8))|((ucs2_t)(*((p)+1))))
51*91e1e26aSAlexander Pyhalov 
52*91e1e26aSAlexander Pyhalov #define set_ucs2_word_BB(p,n) \
53*91e1e26aSAlexander Pyhalov 	(((*(p))=ext_ucs2_msb(n)),((*((p)+1))=ext_ucs2_lsb(n)))
54*91e1e26aSAlexander Pyhalov 
55*91e1e26aSAlexander Pyhalov #else
56*91e1e26aSAlexander Pyhalov #define get_ucs2_word_BB(p) \
57*91e1e26aSAlexander Pyhalov 	(((ucs2_t)(((*((p)+1)))<<8))|((ucs2_t)(*(p))))
58*91e1e26aSAlexander Pyhalov 
59*91e1e26aSAlexander Pyhalov #define set_ucs2_word_BB(p,n) \
60*91e1e26aSAlexander Pyhalov 	((*((p)+1))=ext_ucs2_msb(n),(*(p))=ext_ucs2_lsb(n))
61*91e1e26aSAlexander Pyhalov #endif
62*91e1e26aSAlexander Pyhalov 
63*91e1e26aSAlexander Pyhalov int _valid_ucs2_value(ucs4_t);
64*91e1e26aSAlexander Pyhalov #endif
65