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)
7 // use this header as a workaround for missing <limits>
9 // See http://www.boost.org/libs/utility/limits.html for documentation.
14 #include <boost/config.hpp>
16 #ifdef BOOST_NO_LIMITS
17 # include <boost/detail/limits.hpp>
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
29 # define BOOST_LLT ::boost::long_long_type
30 # define BOOST_ULLT ::boost::ulong_long_type
36 class numeric_limits<BOOST_LLT>
40 BOOST_STATIC_CONSTANT(bool, is_specialized = true);
41 #ifdef BOOST_HAS_MS_INT64
42 static BOOST_LLT min BOOST_PREVENT_MACRO_SUBSTITUTION (){ return 0x8000000000000000i64; }
43 static BOOST_LLT max BOOST_PREVENT_MACRO_SUBSTITUTION (){ return 0x7FFFFFFFFFFFFFFFi64; }
44 #elif defined(LLONG_MAX)
45 static BOOST_LLT min BOOST_PREVENT_MACRO_SUBSTITUTION (){ return LLONG_MIN; }
46 static BOOST_LLT max BOOST_PREVENT_MACRO_SUBSTITUTION (){ return LLONG_MAX; }
47 #elif defined(LONGLONG_MAX)
48 static BOOST_LLT min BOOST_PREVENT_MACRO_SUBSTITUTION (){ return LONGLONG_MIN; }
49 static BOOST_LLT max BOOST_PREVENT_MACRO_SUBSTITUTION (){ return LONGLONG_MAX; }
51 static BOOST_LLT min BOOST_PREVENT_MACRO_SUBSTITUTION (){ return 1LL << (sizeof(BOOST_LLT) * CHAR_BIT - 1); }
52 static BOOST_LLT max BOOST_PREVENT_MACRO_SUBSTITUTION (){ return ~(min)(); }
54 BOOST_STATIC_CONSTANT(int, digits = sizeof(BOOST_LLT) * CHAR_BIT -1);
55 BOOST_STATIC_CONSTANT(int, digits10 = (CHAR_BIT * sizeof (BOOST_LLT) - 1) * 301L / 1000);
56 BOOST_STATIC_CONSTANT(bool, is_signed = true);
57 BOOST_STATIC_CONSTANT(bool, is_integer = true);
58 BOOST_STATIC_CONSTANT(bool, is_exact = true);
59 BOOST_STATIC_CONSTANT(int, radix = 2);
60 static BOOST_LLT epsilon() throw() { return 0; };
61 static BOOST_LLT round_error() throw() { return 0; };
63 BOOST_STATIC_CONSTANT(int, min_exponent = 0);
64 BOOST_STATIC_CONSTANT(int, min_exponent10 = 0);
65 BOOST_STATIC_CONSTANT(int, max_exponent = 0);
66 BOOST_STATIC_CONSTANT(int, max_exponent10 = 0);
68 BOOST_STATIC_CONSTANT(bool, has_infinity = false);
69 BOOST_STATIC_CONSTANT(bool, has_quiet_NaN = false);
70 BOOST_STATIC_CONSTANT(bool, has_signaling_NaN = false);
71 BOOST_STATIC_CONSTANT(bool, has_denorm = false);
72 BOOST_STATIC_CONSTANT(bool, has_denorm_loss = false);
73 static BOOST_LLT infinity() throw() { return 0; };
74 static BOOST_LLT quiet_NaN() throw() { return 0; };
75 static BOOST_LLT signaling_NaN() throw() { return 0; };
76 static BOOST_LLT denorm_min() throw() { return 0; };
78 BOOST_STATIC_CONSTANT(bool, is_iec559 = false);
79 BOOST_STATIC_CONSTANT(bool, is_bounded = false);
80 BOOST_STATIC_CONSTANT(bool, is_modulo = false);
82 BOOST_STATIC_CONSTANT(bool, traps = false);
83 BOOST_STATIC_CONSTANT(bool, tinyness_before = false);
84 BOOST_STATIC_CONSTANT(float_round_style, round_style = round_toward_zero);
89 class numeric_limits<BOOST_ULLT>
93 BOOST_STATIC_CONSTANT(bool, is_specialized = true);
94 #ifdef BOOST_HAS_MS_INT64
95 static BOOST_ULLT min BOOST_PREVENT_MACRO_SUBSTITUTION (){ return 0ui64; }
96 static BOOST_ULLT max BOOST_PREVENT_MACRO_SUBSTITUTION (){ return 0xFFFFFFFFFFFFFFFFui64; }
97 #elif defined(ULLONG_MAX) && defined(ULLONG_MIN)
98 static BOOST_ULLT min BOOST_PREVENT_MACRO_SUBSTITUTION (){ return ULLONG_MIN; }
99 static BOOST_ULLT max BOOST_PREVENT_MACRO_SUBSTITUTION (){ return ULLONG_MAX; }
100 #elif defined(ULONGLONG_MAX) && defined(ULONGLONG_MIN)
101 static BOOST_ULLT min BOOST_PREVENT_MACRO_SUBSTITUTION (){ return ULONGLONG_MIN; }
102 static BOOST_ULLT max BOOST_PREVENT_MACRO_SUBSTITUTION (){ return ULONGLONG_MAX; }
104 static BOOST_ULLT min BOOST_PREVENT_MACRO_SUBSTITUTION (){ return 0uLL; }
105 static BOOST_ULLT max BOOST_PREVENT_MACRO_SUBSTITUTION (){ return ~0uLL; }
107 BOOST_STATIC_CONSTANT(int, digits = sizeof(BOOST_LLT) * CHAR_BIT);
108 BOOST_STATIC_CONSTANT(int, digits10 = (CHAR_BIT * sizeof (BOOST_LLT)) * 301L / 1000);
109 BOOST_STATIC_CONSTANT(bool, is_signed = false);
110 BOOST_STATIC_CONSTANT(bool, is_integer = true);
111 BOOST_STATIC_CONSTANT(bool, is_exact = true);
112 BOOST_STATIC_CONSTANT(int, radix = 2);
113 static BOOST_ULLT epsilon() throw() { return 0; };
114 static BOOST_ULLT round_error() throw() { return 0; };
116 BOOST_STATIC_CONSTANT(int, min_exponent = 0);
117 BOOST_STATIC_CONSTANT(int, min_exponent10 = 0);
118 BOOST_STATIC_CONSTANT(int, max_exponent = 0);
119 BOOST_STATIC_CONSTANT(int, max_exponent10 = 0);
121 BOOST_STATIC_CONSTANT(bool, has_infinity = false);
122 BOOST_STATIC_CONSTANT(bool, has_quiet_NaN = false);
123 BOOST_STATIC_CONSTANT(bool, has_signaling_NaN = false);
124 BOOST_STATIC_CONSTANT(bool, has_denorm = false);
125 BOOST_STATIC_CONSTANT(bool, has_denorm_loss = false);
126 static BOOST_ULLT infinity() throw() { return 0; };
127 static BOOST_ULLT quiet_NaN() throw() { return 0; };
128 static BOOST_ULLT signaling_NaN() throw() { return 0; };
129 static BOOST_ULLT denorm_min() throw() { return 0; };
131 BOOST_STATIC_CONSTANT(bool, is_iec559 = false);
132 BOOST_STATIC_CONSTANT(bool, is_bounded = false);
133 BOOST_STATIC_CONSTANT(bool, is_modulo = false);
135 BOOST_STATIC_CONSTANT(bool, traps = false);
136 BOOST_STATIC_CONSTANT(bool, tinyness_before = false);
137 BOOST_STATIC_CONSTANT(float_round_style, round_style = round_toward_zero);