text: // -*- C++ -*-
  //===--------------------- support/ibm/limits.h ---------------------------===//
  //
  // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
  // See https://llvm.org/LICENSE.txt for license information.
  // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  //
  //===----------------------------------------------------------------------===//
  
  #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
  