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