1*a44a78beSzrj /* 2*a44a78beSzrj * Copyright (c) 2019 The DragonFly Project. All rights reserved. 3*a44a78beSzrj * 4*a44a78beSzrj * Redistribution and use in source and binary forms, with or without 5*a44a78beSzrj * modification, are permitted provided that the following conditions 6*a44a78beSzrj * are met: 7*a44a78beSzrj * 1. Redistributions of source code must retain the above copyright 8*a44a78beSzrj * notice, this list of conditions and the following disclaimer. 9*a44a78beSzrj * 2. Redistributions in binary form must reproduce the above copyright 10*a44a78beSzrj * notice, this list of conditions and the following disclaimer in the 11*a44a78beSzrj * documentation and/or other materials provided with the distribution. 12*a44a78beSzrj * 13*a44a78beSzrj * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 14*a44a78beSzrj * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 15*a44a78beSzrj * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 16*a44a78beSzrj * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 17*a44a78beSzrj * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 18*a44a78beSzrj * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING, 19*a44a78beSzrj * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 20*a44a78beSzrj * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 21*a44a78beSzrj * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 22*a44a78beSzrj * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 23*a44a78beSzrj * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24*a44a78beSzrj * SUCH DAMAGE. 25*a44a78beSzrj */ 26*a44a78beSzrj 27*a44a78beSzrj #ifndef _CPU_WCHAR_LIMITS_H_ 28*a44a78beSzrj #define _CPU_WCHAR_LIMITS_H_ 29*a44a78beSzrj 30*a44a78beSzrj /* 31*a44a78beSzrj * 7.18.3 Limits of other integer types 32*a44a78beSzrj */ 33*a44a78beSzrj 34*a44a78beSzrj /* 35*a44a78beSzrj * The wchar_t type is a builtin type in c++, we assume that compiler 36*a44a78beSzrj * provides correct type and limits, otherwise use fallback values. 37*a44a78beSzrj * Allow compiler to override wchar_t limits with -fshort-wchar. 38*a44a78beSzrj */ 39*a44a78beSzrj 40*a44a78beSzrj /* Limits of wchar_t. */ 41*a44a78beSzrj #if defined(__cplusplus) && defined(__WCHAR_MAX__) && defined(__WCHAR_MIN__) 42*a44a78beSzrj #define __WCHAR_MIN __WCHAR_MIN__ /* min value for c++ wchar_t */ 43*a44a78beSzrj #define __WCHAR_MAX __WCHAR_MAX__ /* max value for c++ wchar_t */ 44*a44a78beSzrj #elif defined(__SIZEOF_WCHAR_T__) && __SIZEOF_WCHAR_T__ == 2 45*a44a78beSzrj #if defined(__WCHAR_MAX__) && defined(__WCHAR_MIN__) 46*a44a78beSzrj #define __WCHAR_MIN __WCHAR_MIN__ /* min value for short wchar_t */ 47*a44a78beSzrj #define __WCHAR_MAX __WCHAR_MAX__ /* max value for short wchar_t */ 48*a44a78beSzrj #else 49*a44a78beSzrj #define __WCHAR_MIN 0 /* min value for short wchar_t (well, zero) */ 50*a44a78beSzrj #define __WCHAR_MAX 0xffff /* max value for short wchar_t (UINT16_MAX) */ 51*a44a78beSzrj #endif 52*a44a78beSzrj #else 53*a44a78beSzrj #define __WCHAR_MIN (-0x7fffffff-1) /* min value for wchar_t (INT32_MIN) */ 54*a44a78beSzrj #define __WCHAR_MAX 0x7fffffff /* max value for wchar_t (INT32_MAX) */ 55*a44a78beSzrj #endif 56*a44a78beSzrj 57*a44a78beSzrj /* Limits of wint_t. */ 58*a44a78beSzrj #define __WINT_MIN (-0x7fffffff-1) /* min value for wint_t (INT32_MIN) */ 59*a44a78beSzrj #define __WINT_MAX 0x7fffffff /* max value for wint_t (INT32_MAX) */ 60*a44a78beSzrj 61*a44a78beSzrj #endif /* !_CPU_WCHAR_LIMITS_H_ */ 62