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