1 /* 2 * Copyright (c) 2019 The DragonFly Project. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 14 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 15 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 16 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 17 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 18 * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING, 19 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 20 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 21 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 22 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 23 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27 #ifndef _CPU_WCHAR_LIMITS_H_ 28 #define _CPU_WCHAR_LIMITS_H_ 29 30 /* 31 * 7.18.3 Limits of other integer types 32 */ 33 34 /* 35 * The wchar_t type is a builtin type in c++, we assume that compiler 36 * provides correct type and limits, otherwise use fallback values. 37 * Allow compiler to override wchar_t limits with -fshort-wchar. 38 */ 39 40 /* Limits of wchar_t. */ 41 #if defined(__cplusplus) && defined(__WCHAR_MAX__) && defined(__WCHAR_MIN__) 42 #define __WCHAR_MIN __WCHAR_MIN__ /* min value for c++ wchar_t */ 43 #define __WCHAR_MAX __WCHAR_MAX__ /* max value for c++ wchar_t */ 44 #elif defined(__SIZEOF_WCHAR_T__) && __SIZEOF_WCHAR_T__ == 2 45 #if defined(__WCHAR_MAX__) && defined(__WCHAR_MIN__) 46 #define __WCHAR_MIN __WCHAR_MIN__ /* min value for short wchar_t */ 47 #define __WCHAR_MAX __WCHAR_MAX__ /* max value for short wchar_t */ 48 #else 49 #define __WCHAR_MIN 0 /* min value for short wchar_t (well, zero) */ 50 #define __WCHAR_MAX 0xffff /* max value for short wchar_t (UINT16_MAX) */ 51 #endif 52 #else 53 #define __WCHAR_MIN (-0x7fffffff-1) /* min value for wchar_t (INT32_MIN) */ 54 #define __WCHAR_MAX 0x7fffffff /* max value for wchar_t (INT32_MAX) */ 55 #endif 56 57 /* Limits of wint_t. */ 58 #define __WINT_MIN (-0x7fffffff-1) /* min value for wint_t (INT32_MIN) */ 59 #define __WINT_MAX 0x7fffffff /* max value for wint_t (INT32_MAX) */ 60 61 #endif /* !_CPU_WCHAR_LIMITS_H_ */ 62