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 17 static const unsigned int _QNAN_F = 0x7fc00000; 18 #define NANF (*((float *)(&_QNAN_F))) 19 static const unsigned int _QNAN_LDBL128[4] = {0x7ff80000, 0x0, 0x0, 0x0}; 20 #define NANL (*((long double *)(&_QNAN_LDBL128))) 21 static const unsigned int _SNAN_F= 0x7f855555; 22 #define NANSF (*((float *)(&_SNAN_F))) 23 static const unsigned int _SNAN_D[2] = {0x7ff55555, 0x55555555}; 24 #define NANS (*((double *)(&_SNAN_D))) 25 static 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
