1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright (c) 1996, by Sun Microsystems, Inc. 24 * All rights reserved. 25 */ 26 27 #pragma ident "%Z%%M% %I% %E% SMI" 28 29 /* 30 * Copyright 1993 by Mortice Kern Systems Inc. All rights reserved. 31 * 32 * $Header: /rd/h/rcs/m_invari.h 1.12 1994/07/06 17:41:39 miked Exp $ 33 */ 34 35 /* 36 * m_invari.h: 37 * Configuration and definitions for support of on systems (e.g EBCDIC) 38 * where the POSIX.2 portable characters are not invariant 39 */ 40 41 #ifndef __M_M_INVARI_H__ 42 #define __M_M_INVARI_H__ 43 44 /* 45 * Are all characters in the portable character set invariant across 46 * all locales? The results, for posix, if not, are undefined. 47 * For systems that want to try to deal with this, M_VARIANTS is set. 48 */ 49 #ifdef M_VARIANTS 50 51 extern char __m_invariant[]; 52 extern char __m_unvariant[]; 53 54 /* 55 * The M_INVARIANTINIT macro must be called to initialize: it returns -1 56 * on memory allocation error. It may be called multiple times, but has 57 * no effect after the first call. To reinitialize the variant <--> 58 * invariant tables after a new setlocale(), use M_INVARIANTREINIT(). 59 * On error, m_error will have been invoked with an appropriate message. 60 */ 61 #define M_INVARIANTINIT() m_invariantinit() 62 extern void m_invariantinit(void); 63 #define M_INVARIANTREINIT() __m_setinvariant() 64 extern void __m_setinvariant(void); 65 66 /* 67 * Assume wide characters are always ok. 68 * Otherwise, always indirect thru the narrow un/invariant table. 69 * INVARIANT takes the character in the current locale, and produces an 70 * invariant value, equal to that the C compiler would have compiled. 71 * UNVARIANT is the inverse; it takes what the C compiler would have 72 * compiled, and returns the value in the current locale. 73 */ 74 #define M_INVARIANT(c) (wctob(c) == EOF ? (c) : __m_invariant[c]) 75 #define M_UNVARIANT(c) (wctob(c) == EOF ? (c) : __m_unvariant[c]) 76 #define M_UNVARIANTSTR(s) m_unvariantstr(s) 77 char *m_unvariantstr(char const *); 78 #define M_WUNVARIANTSTR(ws) m_wunvariantstr(ws) 79 wchar_t *m_wunvariantstr(wchar_t const *); 80 81 #else /* M_VARIANTS */ 82 83 /* Normal system */ 84 #define M_INVARIANTINIT() /* NULL */ 85 #define M_INVARIANTREINIT() /* NULL */ 86 #define M_INVARIANT(c) (c) 87 #define M_UNVARIANT(c) (c) 88 #define M_UNVARIANTSTR(s) (s) 89 #define M_WUNVARIANTSTR(ws) (ws) 90 91 #endif /* M_VARIANTS */ 92 93 #endif /*__M_M_INVARI_H__*/ 94 95 96 97