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Diffstat (limited to 'include/support/ibm/limits.h')
| -rw-r--r-- | include/support/ibm/limits.h | 99 |
1 files changed, 99 insertions, 0 deletions
diff --git a/include/support/ibm/limits.h b/include/support/ibm/limits.h new file mode 100644 index 000000000000..efdb35965965 --- /dev/null +++ b/include/support/ibm/limits.h @@ -0,0 +1,99 @@ +// -*- 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 |