| // -*- C++ -*- |
| //===--------------------- support/ibm/limits.h ---------------------------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef _LIBCPP_SUPPORT_IBM_LIMITS_H |
| #define _LIBCPP_SUPPORT_IBM_LIMITS_H |
| |
| #if !defined(_AIX) // Linux |
| #include <math.h> // for HUGE_VAL, HUGE_VALF, HUGE_VALL, and NAN |
| |
| static const unsigned int _QNAN_F = 0x7fc00000; |
| #define NANF (*((float *)(&_QNAN_F))) |
| static const unsigned int _QNAN_LDBL128[4] = {0x7ff80000, 0x0, 0x0, 0x0}; |
| #define NANL (*((long double *)(&_QNAN_LDBL128))) |
| static const unsigned int _SNAN_F= 0x7f855555; |
| #define NANSF (*((float *)(&_SNAN_F))) |
| static const unsigned int _SNAN_D[2] = {0x7ff55555, 0x55555555}; |
| #define NANS (*((double *)(&_SNAN_D))) |
| static const unsigned int _SNAN_LDBL128[4] = {0x7ff55555, 0x55555555, 0x0, 0x0}; |
| #define NANSL (*((long double *)(&_SNAN_LDBL128))) |
| |
| #define __builtin_huge_val() HUGE_VAL |
| #define __builtin_huge_valf() HUGE_VALF |
| #define __builtin_huge_vall() HUGE_VALL |
| #define __builtin_nan(__dummy) NAN |
| #define __builtin_nanf(__dummy) NANF |
| #define __builtin_nanl(__dummy) NANL |
| #define __builtin_nans(__dummy) NANS |
| #define __builtin_nansf(__dummy) NANSF |
| #define __builtin_nansl(__dummy) NANSL |
| |
| #else |
| |
| #include <math.h> |
| #include <float.h> // limit constants |
| |
| #define __builtin_huge_val() HUGE_VAL //0x7ff0000000000000 |
| #define __builtin_huge_valf() HUGE_VALF //0x7f800000 |
| #define __builtin_huge_vall() HUGE_VALL //0x7ff0000000000000 |
| #define __builtin_nan(__dummy) nan(__dummy) //0x7ff8000000000000 |
| #define __builtin_nanf(__dummy) nanf(__dummy) // 0x7ff80000 |
| #define __builtin_nanl(__dummy) nanl(__dummy) //0x7ff8000000000000 |
| #define __builtin_nans(__dummy) DBL_SNAN //0x7ff5555555555555 |
| #define __builtin_nansf(__dummy) FLT_SNAN //0x7f855555 |
| #define __builtin_nansl(__dummy) DBL_SNAN //0x7ff5555555555555 |
| |
| #define __FLT_MANT_DIG__ FLT_MANT_DIG |
| #define __FLT_DIG__ FLT_DIG |
| #define __FLT_RADIX__ FLT_RADIX |
| #define __FLT_MIN_EXP__ FLT_MIN_EXP |
| #define __FLT_MIN_10_EXP__ FLT_MIN_10_EXP |
| #define __FLT_MAX_EXP__ FLT_MAX_EXP |
| #define __FLT_MAX_10_EXP__ FLT_MAX_10_EXP |
| #define __FLT_MIN__ FLT_MIN |
| #define __FLT_MAX__ FLT_MAX |
| #define __FLT_EPSILON__ FLT_EPSILON |
| // predefined by XLC on LoP |
| #define __FLT_DENORM_MIN__ 1.40129846e-45F |
| |
| #define __DBL_MANT_DIG__ DBL_MANT_DIG |
| #define __DBL_DIG__ DBL_DIG |
| #define __DBL_MIN_EXP__ DBL_MIN_EXP |
| #define __DBL_MIN_10_EXP__ DBL_MIN_10_EXP |
| #define __DBL_MAX_EXP__ DBL_MAX_EXP |
| #define __DBL_MAX_10_EXP__ DBL_MAX_10_EXP |
| #define __DBL_MIN__ DBL_MIN |
| #define __DBL_MAX__ DBL_MAX |
| #define __DBL_EPSILON__ DBL_EPSILON |
| // predefined by XLC on LoP |
| #define __DBL_DENORM_MIN__ 4.9406564584124654e-324 |
| |
| #define __LDBL_MANT_DIG__ LDBL_MANT_DIG |
| #define __LDBL_DIG__ LDBL_DIG |
| #define __LDBL_MIN_EXP__ LDBL_MIN_EXP |
| #define __LDBL_MIN_10_EXP__ LDBL_MIN_10_EXP |
| #define __LDBL_MAX_EXP__ LDBL_MAX_EXP |
| #define __LDBL_MAX_10_EXP__ LDBL_MAX_10_EXP |
| #define __LDBL_MIN__ LDBL_MIN |
| #define __LDBL_MAX__ LDBL_MAX |
| #define __LDBL_EPSILON__ LDBL_EPSILON |
| // predefined by XLC on LoP |
| #if __LONGDOUBLE128 |
| #define __LDBL_DENORM_MIN__ 4.94065645841246544176568792868221e-324L |
| #else |
| #define __LDBL_DENORM_MIN__ 4.9406564584124654e-324L |
| #endif |
| |
| // predefined by XLC on LoP |
| #define __CHAR_BIT__ 8 |
| |
| #endif // _AIX |
| |
| #endif // _LIBCPP_SUPPORT_IBM_LIMITS_H |