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57b08b0944
to reflect the new license. These used slightly different spellings that defeated my regular expressions. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351648
99 lines
3.5 KiB
C++
99 lines
3.5 KiB
C++
// -*- C++ -*-
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//===--------------------- support/ibm/limits.h ---------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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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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