/usr/include/c++/v1/support/ibm/limits.h is in libc++-dev 3.7.0-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 | // -*- 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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