1// -*- C++ -*- 2//===--------------------- support/ibm/limits.h ---------------------------===// 3// 4// The LLVM Compiler Infrastructure 5// 6// This file is dual licensed under the MIT and the University of Illinois Open 7// Source Licenses. See LICENSE.TXT for details. 8// 9//===----------------------------------------------------------------------===// 10 11#ifndef _LIBCPP_SUPPORT_IBM_LIMITS_H 12#define _LIBCPP_SUPPORT_IBM_LIMITS_H 13 14#if !defined(_AIX) // Linux 15#include <math.h> // for HUGE_VAL, HUGE_VALF, HUGE_VALL, and NAN 16 17static const unsigned int _QNAN_F = 0x7fc00000; 18#define NANF (*((float *)(&_QNAN_F))) 19static const unsigned int _QNAN_LDBL128[4] = {0x7ff80000, 0x0, 0x0, 0x0}; 20#define NANL (*((long double *)(&_QNAN_LDBL128))) 21static const unsigned int _SNAN_F= 0x7f855555; 22#define NANSF (*((float *)(&_SNAN_F))) 23static const unsigned int _SNAN_D[2] = {0x7ff55555, 0x55555555}; 24#define NANS (*((double *)(&_SNAN_D))) 25static const unsigned int _SNAN_LDBL128[4] = {0x7ff55555, 0x55555555, 0x0, 0x0}; 26#define NANSL (*((long double *)(&_SNAN_LDBL128))) 27 28#define __builtin_huge_val() HUGE_VAL 29#define __builtin_huge_valf() HUGE_VALF 30#define __builtin_huge_vall() HUGE_VALL 31#define __builtin_nan(__dummy) NAN 32#define __builtin_nanf(__dummy) NANF 33#define __builtin_nanl(__dummy) NANL 34#define __builtin_nans(__dummy) NANS 35#define __builtin_nansf(__dummy) NANSF 36#define __builtin_nansl(__dummy) NANSL 37 38#else 39 40#include <math.h> 41#include <float.h> // limit constants 42 43#define __builtin_huge_val() HUGE_VAL //0x7ff0000000000000 44#define __builtin_huge_valf() HUGE_VALF //0x7f800000 45#define __builtin_huge_vall() HUGE_VALL //0x7ff0000000000000 46#define __builtin_nan(__dummy) nan(__dummy) //0x7ff8000000000000 47#define __builtin_nanf(__dummy) nanf(__dummy) // 0x7ff80000 48#define __builtin_nanl(__dummy) nanl(__dummy) //0x7ff8000000000000 49#define __builtin_nans(__dummy) DBL_SNAN //0x7ff5555555555555 50#define __builtin_nansf(__dummy) FLT_SNAN //0x7f855555 51#define __builtin_nansl(__dummy) DBL_SNAN //0x7ff5555555555555 52 53#define __FLT_MANT_DIG__ FLT_MANT_DIG 54#define __FLT_DIG__ FLT_DIG 55#define __FLT_RADIX__ FLT_RADIX 56#define __FLT_MIN_EXP__ FLT_MIN_EXP 57#define __FLT_MIN_10_EXP__ FLT_MIN_10_EXP 58#define __FLT_MAX_EXP__ FLT_MAX_EXP 59#define __FLT_MAX_10_EXP__ FLT_MAX_10_EXP 60#define __FLT_MIN__ FLT_MIN 61#define __FLT_MAX__ FLT_MAX 62#define __FLT_EPSILON__ FLT_EPSILON 63// predefined by XLC on LoP 64#define __FLT_DENORM_MIN__ 1.40129846e-45F 65 66#define __DBL_MANT_DIG__ DBL_MANT_DIG 67#define __DBL_DIG__ DBL_DIG 68#define __DBL_MIN_EXP__ DBL_MIN_EXP 69#define __DBL_MIN_10_EXP__ DBL_MIN_10_EXP 70#define __DBL_MAX_EXP__ DBL_MAX_EXP 71#define __DBL_MAX_10_EXP__ DBL_MAX_10_EXP 72#define __DBL_MIN__ DBL_MIN 73#define __DBL_MAX__ DBL_MAX 74#define __DBL_EPSILON__ DBL_EPSILON 75// predefined by XLC on LoP 76#define __DBL_DENORM_MIN__ 4.9406564584124654e-324 77 78#define __LDBL_MANT_DIG__ LDBL_MANT_DIG 79#define __LDBL_DIG__ LDBL_DIG 80#define __LDBL_MIN_EXP__ LDBL_MIN_EXP 81#define __LDBL_MIN_10_EXP__ LDBL_MIN_10_EXP 82#define __LDBL_MAX_EXP__ LDBL_MAX_EXP 83#define __LDBL_MAX_10_EXP__ LDBL_MAX_10_EXP 84#define __LDBL_MIN__ LDBL_MIN 85#define __LDBL_MAX__ LDBL_MAX 86#define __LDBL_EPSILON__ LDBL_EPSILON 87// predefined by XLC on LoP 88#if __LONGDOUBLE128 89#define __LDBL_DENORM_MIN__ 4.94065645841246544176568792868221e-324L 90#else 91#define __LDBL_DENORM_MIN__ 4.9406564584124654e-324L 92#endif 93 94// predefined by XLC on LoP 95#define __CHAR_BIT__ 8 96 97#endif // _AIX 98 99#endif // _LIBCPP_SUPPORT_IBM_LIMITS_H 100