xref: /titanic_51/usr/src/lib/iconv_modules/common/ucs4.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 UCS4_H
28*91e1e26aSAlexander Pyhalov #define UCS4_H
29*91e1e26aSAlexander Pyhalov #include <sys/isa_defs.h>
30*91e1e26aSAlexander Pyhalov #include <sys/types.h>
31*91e1e26aSAlexander Pyhalov #include "ucs2.h"
32*91e1e26aSAlexander Pyhalov #include "gentypes.h"
33*91e1e26aSAlexander Pyhalov 
34*91e1e26aSAlexander Pyhalov #define UCS4_NBYTE  4
35*91e1e26aSAlexander Pyhalov #define UCS4_MAXVAL 0x7fffffff
36*91e1e26aSAlexander Pyhalov #define UCS4_PPRC_MAXVAL 0xfffd	/* PPRC: Per Plane Row Column */
37*91e1e26aSAlexander Pyhalov 
38*91e1e26aSAlexander Pyhalov #define room_for_ucs4_cnv(p1,p2) 	(((p1)+sizeof(ucs4_t))<=(p2))
39*91e1e26aSAlexander Pyhalov #define no_room_for_ucs4_cnv(p1,p2) 	(((p1)+sizeof(ucs4_t))>(p2))
40*91e1e26aSAlexander Pyhalov #define incomplete_ucs4_seq(p1,p2) 	(((p1)+sizeof(ucs4_t))>(p2))
41*91e1e26aSAlexander Pyhalov 
42*91e1e26aSAlexander Pyhalov #define valid_ucs4_value(n) (_valid_ucs4_value(n))
43*91e1e26aSAlexander Pyhalov 
44*91e1e26aSAlexander Pyhalov #define ext_ucs4_lsw(n)	((ucs2_t)((((ucs4_t)(n))&((ucs4_t)0x0000ffff))))
45*91e1e26aSAlexander Pyhalov #define ext_ucs4_msw(n)	((ucs2_t)((((ucs4_t)(n))&((ucs4_t)0xffff0000))>>16))
46*91e1e26aSAlexander Pyhalov 
47*91e1e26aSAlexander Pyhalov #define get_ucs4_word(p)        (*((ucs4_t*)(p)))
48*91e1e26aSAlexander Pyhalov #define set_ucs4_word(p,n)	((*((ucs4_t*)(p)))=n)
49*91e1e26aSAlexander Pyhalov 
50*91e1e26aSAlexander Pyhalov #if defined(_BIG_ENDIAN)
51*91e1e26aSAlexander Pyhalov #define get_ucs4_word_BB(p)	(((ucs4_t)(get_ucs2_word_BB((p))<<16))|\
52*91e1e26aSAlexander Pyhalov 				 ((ucs4_t)(get_ucs2_word_BB((p)+2))))
53*91e1e26aSAlexander Pyhalov 
54*91e1e26aSAlexander Pyhalov #define set_ucs4_word_BB(p,n) 	(set_ucs2_word_BB((p),ext_ucs4_msw(n)),\
55*91e1e26aSAlexander Pyhalov 				 set_ucs2_word_BB((p)+2,ext_ucs4_lsw(n)))
56*91e1e26aSAlexander Pyhalov #else
57*91e1e26aSAlexander Pyhalov #define get_ucs4_word_BB(p)	(((ucs4_t)(get_ucs2_word_BB((p)+2)<<16))|\
58*91e1e26aSAlexander Pyhalov 				 ((ucs4_t)(get_ucs2_word_BB(p))))
59*91e1e26aSAlexander Pyhalov 
60*91e1e26aSAlexander Pyhalov #define set_ucs4_word_BB(p,n) 	(set_ucs2_word_BB((p)+2,ext_ucs4_msw(n)),\
61*91e1e26aSAlexander Pyhalov 				 set_ucs2_word_BB((p),ext_ucs4_lsw(n)))
62*91e1e26aSAlexander Pyhalov #endif
63*91e1e26aSAlexander Pyhalov 
64*91e1e26aSAlexander Pyhalov int _valid_ucs4_value(ucs4_t);
65*91e1e26aSAlexander Pyhalov #endif
66