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- // -*- C++ -*-
- //===--------------------- support/ibm/limits.h ---------------------------===//
- //
- // The LLVM Compiler Infrastructure
- //
- // This file is dual licensed under the MIT and the University of Illinois Open
- // Source Licenses. See LICENSE.TXT for details.
- //
- //===----------------------------------------------------------------------===//
- #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
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