github.com/searKing/golang/go@v1.2.74/runtime/cgosymbolizer/include/boost/limits.hpp (about)

     1  
     2  //  (C) Copyright John maddock 1999. 
     3  //  (C) David Abrahams 2002.  Distributed under the Boost
     4  //  Software License, Version 1.0. (See accompanying file
     5  //  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
     6  //
     7  // use this header as a workaround for missing <limits>
     8  
     9  //  See http://www.boost.org/libs/compatibility/index.html for documentation.
    10  
    11  #ifndef BOOST_LIMITS
    12  #define BOOST_LIMITS
    13  
    14  #include <boost/config.hpp>
    15  
    16  #ifdef BOOST_NO_LIMITS
    17  #  error "There is no std::numeric_limits suppport available."
    18  #else
    19  # include <limits>
    20  #endif
    21  
    22  #if (defined(BOOST_HAS_LONG_LONG) && defined(BOOST_NO_LONG_LONG_NUMERIC_LIMITS)) \
    23        || (defined(BOOST_HAS_MS_INT64) && defined(BOOST_NO_MS_INT64_NUMERIC_LIMITS))
    24  // Add missing specializations for numeric_limits:
    25  #ifdef BOOST_HAS_MS_INT64
    26  #  define BOOST_LLT __int64
    27  #  define BOOST_ULLT unsigned __int64
    28  #else
    29  #  define BOOST_LLT  ::boost::long_long_type
    30  #  define BOOST_ULLT  ::boost::ulong_long_type
    31  #endif
    32  
    33  #include <climits>  // for CHAR_BIT
    34  
    35  namespace std
    36  {
    37    template<>
    38    class numeric_limits<BOOST_LLT> 
    39    {
    40     public:
    41  
    42        BOOST_STATIC_CONSTANT(bool, is_specialized = true);
    43  #ifdef BOOST_HAS_MS_INT64
    44        static BOOST_LLT min BOOST_PREVENT_MACRO_SUBSTITUTION (){ return 0x8000000000000000i64; }
    45        static BOOST_LLT max BOOST_PREVENT_MACRO_SUBSTITUTION (){ return 0x7FFFFFFFFFFFFFFFi64; }
    46  #elif defined(LLONG_MAX)
    47        static BOOST_LLT min BOOST_PREVENT_MACRO_SUBSTITUTION (){ return LLONG_MIN; }
    48        static BOOST_LLT max BOOST_PREVENT_MACRO_SUBSTITUTION (){ return LLONG_MAX; }
    49  #elif defined(LONGLONG_MAX)
    50        static BOOST_LLT min BOOST_PREVENT_MACRO_SUBSTITUTION (){ return LONGLONG_MIN; }
    51        static BOOST_LLT max BOOST_PREVENT_MACRO_SUBSTITUTION (){ return LONGLONG_MAX; }
    52  #else
    53        static BOOST_LLT min BOOST_PREVENT_MACRO_SUBSTITUTION (){ return 1LL << (sizeof(BOOST_LLT) * CHAR_BIT - 1); }
    54        static BOOST_LLT max BOOST_PREVENT_MACRO_SUBSTITUTION (){ return ~(min)(); }
    55  #endif
    56        BOOST_STATIC_CONSTANT(int, digits = sizeof(BOOST_LLT) * CHAR_BIT -1);
    57        BOOST_STATIC_CONSTANT(int, digits10 = (CHAR_BIT * sizeof (BOOST_LLT) - 1) * 301L / 1000);
    58        BOOST_STATIC_CONSTANT(bool, is_signed = true);
    59        BOOST_STATIC_CONSTANT(bool, is_integer = true);
    60        BOOST_STATIC_CONSTANT(bool, is_exact = true);
    61        BOOST_STATIC_CONSTANT(int, radix = 2);
    62        static BOOST_LLT epsilon() throw() { return 0; };
    63        static BOOST_LLT round_error() throw() { return 0; };
    64  
    65        BOOST_STATIC_CONSTANT(int, min_exponent = 0);
    66        BOOST_STATIC_CONSTANT(int, min_exponent10 = 0);
    67        BOOST_STATIC_CONSTANT(int, max_exponent = 0);
    68        BOOST_STATIC_CONSTANT(int, max_exponent10 = 0);
    69  
    70        BOOST_STATIC_CONSTANT(bool, has_infinity = false);
    71        BOOST_STATIC_CONSTANT(bool, has_quiet_NaN = false);
    72        BOOST_STATIC_CONSTANT(bool, has_signaling_NaN = false);
    73        BOOST_STATIC_CONSTANT(bool, has_denorm = false);
    74        BOOST_STATIC_CONSTANT(bool, has_denorm_loss = false);
    75        static BOOST_LLT infinity() throw() { return 0; };
    76        static BOOST_LLT quiet_NaN() throw() { return 0; };
    77        static BOOST_LLT signaling_NaN() throw() { return 0; };
    78        static BOOST_LLT denorm_min() throw() { return 0; };
    79  
    80        BOOST_STATIC_CONSTANT(bool, is_iec559 = false);
    81        BOOST_STATIC_CONSTANT(bool, is_bounded = true);
    82        BOOST_STATIC_CONSTANT(bool, is_modulo = true);
    83  
    84        BOOST_STATIC_CONSTANT(bool, traps = false);
    85        BOOST_STATIC_CONSTANT(bool, tinyness_before = false);
    86        BOOST_STATIC_CONSTANT(float_round_style, round_style = round_toward_zero);
    87        
    88    };
    89  
    90    template<>
    91    class numeric_limits<BOOST_ULLT> 
    92    {
    93     public:
    94  
    95        BOOST_STATIC_CONSTANT(bool, is_specialized = true);
    96  #ifdef BOOST_HAS_MS_INT64
    97        static BOOST_ULLT min BOOST_PREVENT_MACRO_SUBSTITUTION (){ return 0ui64; }
    98        static BOOST_ULLT max BOOST_PREVENT_MACRO_SUBSTITUTION (){ return 0xFFFFFFFFFFFFFFFFui64; }
    99  #elif defined(ULLONG_MAX) && defined(ULLONG_MIN)
   100        static BOOST_ULLT min BOOST_PREVENT_MACRO_SUBSTITUTION (){ return ULLONG_MIN; }
   101        static BOOST_ULLT max BOOST_PREVENT_MACRO_SUBSTITUTION (){ return ULLONG_MAX; }
   102  #elif defined(ULONGLONG_MAX) && defined(ULONGLONG_MIN)
   103        static BOOST_ULLT min BOOST_PREVENT_MACRO_SUBSTITUTION (){ return ULONGLONG_MIN; }
   104        static BOOST_ULLT max BOOST_PREVENT_MACRO_SUBSTITUTION (){ return ULONGLONG_MAX; }
   105  #else
   106        static BOOST_ULLT min BOOST_PREVENT_MACRO_SUBSTITUTION (){ return 0uLL; }
   107        static BOOST_ULLT max BOOST_PREVENT_MACRO_SUBSTITUTION (){ return ~0uLL; }
   108  #endif
   109        BOOST_STATIC_CONSTANT(int, digits = sizeof(BOOST_LLT) * CHAR_BIT);
   110        BOOST_STATIC_CONSTANT(int, digits10 = (CHAR_BIT * sizeof (BOOST_LLT)) * 301L / 1000);
   111        BOOST_STATIC_CONSTANT(bool, is_signed = false);
   112        BOOST_STATIC_CONSTANT(bool, is_integer = true);
   113        BOOST_STATIC_CONSTANT(bool, is_exact = true);
   114        BOOST_STATIC_CONSTANT(int, radix = 2);
   115        static BOOST_ULLT epsilon() throw() { return 0; };
   116        static BOOST_ULLT round_error() throw() { return 0; };
   117  
   118        BOOST_STATIC_CONSTANT(int, min_exponent = 0);
   119        BOOST_STATIC_CONSTANT(int, min_exponent10 = 0);
   120        BOOST_STATIC_CONSTANT(int, max_exponent = 0);
   121        BOOST_STATIC_CONSTANT(int, max_exponent10 = 0);
   122  
   123        BOOST_STATIC_CONSTANT(bool, has_infinity = false);
   124        BOOST_STATIC_CONSTANT(bool, has_quiet_NaN = false);
   125        BOOST_STATIC_CONSTANT(bool, has_signaling_NaN = false);
   126        BOOST_STATIC_CONSTANT(bool, has_denorm = false);
   127        BOOST_STATIC_CONSTANT(bool, has_denorm_loss = false);
   128        static BOOST_ULLT infinity() throw() { return 0; };
   129        static BOOST_ULLT quiet_NaN() throw() { return 0; };
   130        static BOOST_ULLT signaling_NaN() throw() { return 0; };
   131        static BOOST_ULLT denorm_min() throw() { return 0; };
   132  
   133        BOOST_STATIC_CONSTANT(bool, is_iec559 = false);
   134        BOOST_STATIC_CONSTANT(bool, is_bounded = true);
   135        BOOST_STATIC_CONSTANT(bool, is_modulo = true);
   136  
   137        BOOST_STATIC_CONSTANT(bool, traps = false);
   138        BOOST_STATIC_CONSTANT(bool, tinyness_before = false);
   139        BOOST_STATIC_CONSTANT(float_round_style, round_style = round_toward_zero);
   140        
   141    };
   142  }
   143  #endif 
   144  
   145  #endif
   146