1 //  Copyright John Maddock 2006.
2 //  Use, modification and distribution are subject to the
3 //  Boost Software License, Version 1.0. (See accompanying file
4 //  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
5 
6 #define BOOST_MATH_ASSERT_UNDEFINED_POLICY false
7 
8 #include "poison.hpp"
9 
10 #include <boost/math/concepts/std_real_concept.hpp>
11 #include <boost/math/concepts/distributions.hpp>
12 
13 #include "instantiate.hpp"
14 
15 //
16 // The purpose of this test is to verify that our code compiles
17 // cleanly with a type whose std lib functions are in namespace
18 // std and can *not* be found by ADL.  This verifies that we're
19 // not finding std lib functions that are in the global namespace
20 // for example calling ::pow(double) rather than std::pow(long double).
21 // This is a silent error that does the wrong thing at runtime, and
22 // of course we can't call std::pow() directly because we want
23 // the functions to be found by ADL when that's appropriate.
24 //
25 // Furthermore our code does different things internally depending
26 // on numeric_limits<>::digits, so there are some macros that can
27 // be defined that cause our concept-archetype to emulate various
28 // floating point types:
29 //
30 // EMULATE32: 32-bit float
31 // EMULATE64: 64-bit double
32 // EMULATE80: 80-bit long double
33 // EMULATE128: 128-bit long double
34 //
35 // In order to ensure total code coverage this file must be
36 // compiled with each of the above macros in turn, and then
37 // without any of the above as well!
38 //
39 
40 #define NULL_MACRO /**/
41 #ifdef EMULATE32
42 namespace std{
43 template<>
44 struct numeric_limits<boost::math::concepts::std_real_concept>
45 {
46    static const bool is_specialized = true;
47    static boost::math::concepts::std_real_concept min NULL_MACRO() throw();
48    static boost::math::concepts::std_real_concept max NULL_MACRO() throw();
49    static const int digits = 24;
50    static const int digits10 = 6;
51    static const bool is_signed = true;
52    static const bool is_integer = false;
53    static const bool is_exact = false;
54    static const int radix = 2;
55    static boost::math::concepts::std_real_concept epsilon() throw();
56    static boost::math::concepts::std_real_concept round_error() throw();
57    static const int min_exponent = -125;
58    static const int min_exponent10 = -37;
59    static const int max_exponent = 128;
60    static const int max_exponent10 = 38;
61    static const bool has_infinity = true;
62    static const bool has_quiet_NaN = true;
63    static const bool has_signaling_NaN = true;
64    static const float_denorm_style has_denorm = denorm_absent;
65    static const bool has_denorm_loss = false;
66    static boost::math::concepts::std_real_concept infinity() throw();
67    static boost::math::concepts::std_real_concept quiet_NaN() throw();
68    static boost::math::concepts::std_real_concept signaling_NaN() throw();
69    static boost::math::concepts::std_real_concept denorm_min() throw();
70    static const bool is_iec559 = true;
71    static const bool is_bounded = false;
72    static const bool is_modulo = false;
73    static const bool traps = false;
74    static const bool tinyness_before = false;
75    static const float_round_style round_style = round_toward_zero;
76 };
77 }
78 #endif
79 #ifdef EMULATE64
80 namespace std{
81 template<>
82 struct numeric_limits<boost::math::concepts::std_real_concept>
83 {
84    static const bool is_specialized = true;
85    static boost::math::concepts::std_real_concept min NULL_MACRO() throw();
86    static boost::math::concepts::std_real_concept max NULL_MACRO() throw();
87    static const int digits = 53;
88    static const int digits10 = 15;
89    static const bool is_signed = true;
90    static const bool is_integer = false;
91    static const bool is_exact = false;
92    static const int radix = 2;
93    static boost::math::concepts::std_real_concept epsilon() throw();
94    static boost::math::concepts::std_real_concept round_error() throw();
95    static const int min_exponent = -1021;
96    static const int min_exponent10 = -307;
97    static const int max_exponent = 1024;
98    static const int max_exponent10 = 308;
99    static const bool has_infinity = true;
100    static const bool has_quiet_NaN = true;
101    static const bool has_signaling_NaN = true;
102    static const float_denorm_style has_denorm = denorm_absent;
103    static const bool has_denorm_loss = false;
104    static boost::math::concepts::std_real_concept infinity() throw();
105    static boost::math::concepts::std_real_concept quiet_NaN() throw();
106    static boost::math::concepts::std_real_concept signaling_NaN() throw();
107    static boost::math::concepts::std_real_concept denorm_min() throw();
108    static const bool is_iec559 = true;
109    static const bool is_bounded = false;
110    static const bool is_modulo = false;
111    static const bool traps = false;
112    static const bool tinyness_before = false;
113    static const float_round_style round_style = round_toward_zero;
114 };
115 }
116 #endif
117 #ifdef EMULATE80
118 namespace std{
119 template<>
120 struct numeric_limits<boost::math::concepts::std_real_concept>
121 {
122    static const bool is_specialized = true;
123    static boost::math::concepts::std_real_concept min NULL_MACRO() throw();
124    static boost::math::concepts::std_real_concept max NULL_MACRO() throw();
125    static const int digits = 64;
126    static const int digits10 = 18;
127    static const bool is_signed = true;
128    static const bool is_integer = false;
129    static const bool is_exact = false;
130    static const int radix = 2;
131    static boost::math::concepts::std_real_concept epsilon() throw();
132    static boost::math::concepts::std_real_concept round_error() throw();
133    static const int min_exponent = -16381;
134    static const int min_exponent10 = -4931;
135    static const int max_exponent = 16384;
136    static const int max_exponent10 = 4932;
137    static const bool has_infinity = true;
138    static const bool has_quiet_NaN = true;
139    static const bool has_signaling_NaN = true;
140    static const float_denorm_style has_denorm = denorm_absent;
141    static const bool has_denorm_loss = false;
142    static boost::math::concepts::std_real_concept infinity() throw();
143    static boost::math::concepts::std_real_concept quiet_NaN() throw();
144    static boost::math::concepts::std_real_concept signaling_NaN() throw();
145    static boost::math::concepts::std_real_concept denorm_min() throw();
146    static const bool is_iec559 = true;
147    static const bool is_bounded = false;
148    static const bool is_modulo = false;
149    static const bool traps = false;
150    static const bool tinyness_before = false;
151    static const float_round_style round_style = round_toward_zero;
152 };
153 }
154 #endif
155 #ifdef EMULATE128
156 namespace std{
157 template<>
158 struct numeric_limits<boost::math::concepts::std_real_concept>
159 {
160    static const bool is_specialized = true;
161    static boost::math::concepts::std_real_concept min NULL_MACRO() throw();
162    static boost::math::concepts::std_real_concept max NULL_MACRO() throw();
163    static const int digits = 113;
164    static const int digits10 = 33;
165    static const bool is_signed = true;
166    static const bool is_integer = false;
167    static const bool is_exact = false;
168    static const int radix = 2;
169    static boost::math::concepts::std_real_concept epsilon() throw();
170    static boost::math::concepts::std_real_concept round_error() throw();
171    static const int min_exponent = -16381;
172    static const int min_exponent10 = -4931;
173    static const int max_exponent = 16384;
174    static const int max_exponent10 = 4932;
175    static const bool has_infinity = true;
176    static const bool has_quiet_NaN = true;
177    static const bool has_signaling_NaN = true;
178    static const float_denorm_style has_denorm = denorm_absent;
179    static const bool has_denorm_loss = false;
180    static boost::math::concepts::std_real_concept infinity() throw();
181    static boost::math::concepts::std_real_concept quiet_NaN() throw();
182    static boost::math::concepts::std_real_concept signaling_NaN() throw();
183    static boost::math::concepts::std_real_concept denorm_min() throw();
184    static const bool is_iec559 = true;
185    static const bool is_bounded = false;
186    static const bool is_modulo = false;
187    static const bool traps = false;
188    static const bool tinyness_before = false;
189    static const float_round_style round_style = round_toward_zero;
190 };
191 }
192 #endif
193 
194 
195 
main(int argc,char * [])196 int main(int argc, char*[])
197 {
198 #ifndef BOOST_MATH_NO_LONG_DOUBLE_MATH_FUNCTIONS
199    if(argc > 1000)
200       instantiate(boost::math::concepts::std_real_concept(0));
201 #endif
202 }
203 
204