traits_test.cpp 24 KB

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  1. // Copyright (C) 2003, Fernando Luis Cacciola Carballal.
  2. //
  3. // Distributed under the Boost Software License, Version 1.0. (See
  4. // accompanying file LICENSE_1_0.txt or copy at
  5. // http://www.boost.org/LICENSE_1_0.txt)
  6. //
  7. //
  8. #include<iostream>
  9. #include<iomanip>
  10. #include<string>
  11. #include<typeinfo>
  12. #include<vector>
  13. #include<algorithm>
  14. #include <boost/cstdint.hpp>
  15. #include <boost/utility.hpp>
  16. #include <boost/preprocessor/cat.hpp>
  17. #include <boost/numeric/conversion/conversion_traits.hpp>
  18. #include <boost/numeric/conversion/int_float_mixture.hpp>
  19. #include <boost/numeric/conversion/sign_mixture.hpp>
  20. #include <boost/numeric/conversion/udt_builtin_mixture.hpp>
  21. #include <boost/numeric/conversion/is_subranged.hpp>
  22. #ifdef __BORLANDC__
  23. #pragma hdrstop
  24. #endif
  25. #include "test_helpers.cpp"
  26. #include "test_helpers2.cpp"
  27. using namespace std ;
  28. using namespace boost ;
  29. using namespace numeric;
  30. using namespace MyUDT ;
  31. // These helpers are used by generate_expected_traits<T,S>.
  32. // Unlike the similar helpers in the implementation, they are specialized by extension.
  33. //
  34. template<class T, class S> struct my_is_subranged ;
  35. template<class T, class S> struct my_is_trivial ;
  36. template<class T, class S> struct my_int_float_mixture ;
  37. template<class T, class S> struct my_sign_mixture ;
  38. template<class T, class S> struct my_udt_builtin_mixture ;
  39. // This macro is used to define the properties of each conversion between
  40. // the builtin arithmetric types
  41. //
  42. // It defines the specialization of the helper traits used by 'generate_expected_traits'
  43. //
  44. #define DEFINE_CONVERSION(Target,Source,Trivial,Mixture,SignMixture,UdtMixture,SubRanged) \
  45. \
  46. template<> struct my_is_subranged<Target,Source> \
  47. { typedef mpl::bool_< (SubRanged) > type ; } ; \
  48. \
  49. template<> struct my_is_trivial<Target,Source> \
  50. { typedef mpl::bool_< (Trivial) > type ; } ; \
  51. \
  52. template<> struct my_int_float_mixture<Target,Source> \
  53. { typedef mpl::integral_c<boost::numeric::int_float_mixture_enum, (Mixture) > type ; } ; \
  54. \
  55. template<> struct my_sign_mixture<Target,Source> \
  56. { typedef mpl::integral_c<boost::numeric::sign_mixture_enum, (SignMixture) > type ; } ; \
  57. \
  58. template<> struct my_udt_builtin_mixture<Target,Source> \
  59. { typedef mpl::integral_c<boost::numeric::udt_builtin_mixture_enum, (UdtMixture) > type ; }
  60. #define cSubRanged true
  61. #define cTrivial true
  62. // The following test assumes a specific relation between the sizes of the types being used;
  63. // therefore, use specific fixed-width types instead built-in types directly.
  64. // NOTE --> TARGET,SOURCE
  65. //
  66. DEFINE_CONVERSION(boost::uint8_t , boost::uint8_t, cTrivial, integral_to_integral, unsigned_to_unsigned, builtin_to_builtin, !cSubRanged );
  67. DEFINE_CONVERSION(boost::int8_t , boost::uint8_t, !cTrivial, integral_to_integral, unsigned_to_signed , builtin_to_builtin, cSubRanged );
  68. DEFINE_CONVERSION(boost::uint16_t , boost::uint8_t, !cTrivial, integral_to_integral, unsigned_to_unsigned, builtin_to_builtin, !cSubRanged );
  69. DEFINE_CONVERSION(boost::int16_t , boost::uint8_t, !cTrivial, integral_to_integral, unsigned_to_signed , builtin_to_builtin, !cSubRanged );
  70. DEFINE_CONVERSION(boost::uint32_t , boost::uint8_t, !cTrivial, integral_to_integral, unsigned_to_unsigned, builtin_to_builtin, !cSubRanged );
  71. DEFINE_CONVERSION(boost::int32_t , boost::uint8_t, !cTrivial, integral_to_integral, unsigned_to_signed , builtin_to_builtin, !cSubRanged );
  72. DEFINE_CONVERSION(float , boost::uint8_t, !cTrivial, integral_to_float , unsigned_to_signed , builtin_to_builtin, !cSubRanged );
  73. DEFINE_CONVERSION(double , boost::uint8_t, !cTrivial, integral_to_float , unsigned_to_signed , builtin_to_builtin, !cSubRanged );
  74. DEFINE_CONVERSION(long double , boost::uint8_t, !cTrivial, integral_to_float , unsigned_to_signed , builtin_to_builtin, !cSubRanged );
  75. DEFINE_CONVERSION(MyInt , boost::uint8_t, !cTrivial, integral_to_integral, unsigned_to_signed , builtin_to_udt , !cSubRanged );
  76. DEFINE_CONVERSION(MyFloat , boost::uint8_t, !cTrivial, integral_to_float , unsigned_to_signed , builtin_to_udt , !cSubRanged );
  77. DEFINE_CONVERSION(boost::uint8_t , boost::int8_t, !cTrivial, integral_to_integral, signed_to_unsigned, builtin_to_builtin, cSubRanged );
  78. DEFINE_CONVERSION(boost::int8_t , boost::int8_t, cTrivial, integral_to_integral, signed_to_signed , builtin_to_builtin, !cSubRanged );
  79. DEFINE_CONVERSION(boost::uint16_t , boost::int8_t, !cTrivial, integral_to_integral, signed_to_unsigned, builtin_to_builtin, cSubRanged );
  80. DEFINE_CONVERSION(boost::int16_t , boost::int8_t, !cTrivial, integral_to_integral, signed_to_signed , builtin_to_builtin, !cSubRanged );
  81. DEFINE_CONVERSION(boost::uint32_t , boost::int8_t, !cTrivial, integral_to_integral, signed_to_unsigned, builtin_to_builtin, cSubRanged );
  82. DEFINE_CONVERSION(boost::int32_t , boost::int8_t, !cTrivial, integral_to_integral, signed_to_signed , builtin_to_builtin, !cSubRanged );
  83. DEFINE_CONVERSION(float , boost::int8_t, !cTrivial, integral_to_float , signed_to_signed , builtin_to_builtin, !cSubRanged );
  84. DEFINE_CONVERSION(double , boost::int8_t, !cTrivial, integral_to_float , signed_to_signed , builtin_to_builtin, !cSubRanged );
  85. DEFINE_CONVERSION(long double , boost::int8_t, !cTrivial, integral_to_float , signed_to_signed , builtin_to_builtin, !cSubRanged );
  86. DEFINE_CONVERSION(MyInt , boost::int8_t, !cTrivial, integral_to_integral, signed_to_signed , builtin_to_udt , !cSubRanged );
  87. DEFINE_CONVERSION(MyFloat , boost::int8_t, !cTrivial, integral_to_float , signed_to_signed , builtin_to_udt , !cSubRanged );
  88. DEFINE_CONVERSION(boost::uint8_t , boost::uint16_t, !cTrivial, integral_to_integral, unsigned_to_unsigned, builtin_to_builtin, cSubRanged );
  89. DEFINE_CONVERSION(boost::int8_t , boost::uint16_t, !cTrivial, integral_to_integral, unsigned_to_signed , builtin_to_builtin, cSubRanged );
  90. DEFINE_CONVERSION(boost::uint16_t , boost::uint16_t, cTrivial, integral_to_integral, unsigned_to_unsigned, builtin_to_builtin, !cSubRanged );
  91. DEFINE_CONVERSION(boost::int16_t , boost::uint16_t, !cTrivial, integral_to_integral, unsigned_to_signed , builtin_to_builtin, cSubRanged );
  92. DEFINE_CONVERSION(boost::uint32_t , boost::uint16_t, !cTrivial, integral_to_integral, unsigned_to_unsigned, builtin_to_builtin, !cSubRanged );
  93. DEFINE_CONVERSION(boost::int32_t , boost::uint16_t, !cTrivial, integral_to_integral, unsigned_to_signed , builtin_to_builtin, !cSubRanged );
  94. DEFINE_CONVERSION(float , boost::uint16_t, !cTrivial, integral_to_float , unsigned_to_signed , builtin_to_builtin, !cSubRanged );
  95. DEFINE_CONVERSION(double , boost::uint16_t, !cTrivial, integral_to_float , unsigned_to_signed , builtin_to_builtin, !cSubRanged );
  96. DEFINE_CONVERSION(long double , boost::uint16_t, !cTrivial, integral_to_float , unsigned_to_signed , builtin_to_builtin, !cSubRanged );
  97. DEFINE_CONVERSION(MyInt , boost::uint16_t, !cTrivial, integral_to_integral, unsigned_to_signed , builtin_to_udt , !cSubRanged );
  98. DEFINE_CONVERSION(MyFloat , boost::uint16_t, !cTrivial, integral_to_float , unsigned_to_signed , builtin_to_udt , !cSubRanged );
  99. DEFINE_CONVERSION(boost::uint8_t , boost::int16_t, !cTrivial, integral_to_integral, signed_to_unsigned, builtin_to_builtin, cSubRanged );
  100. DEFINE_CONVERSION(boost::int8_t , boost::int16_t, !cTrivial, integral_to_integral, signed_to_signed , builtin_to_builtin, cSubRanged );
  101. DEFINE_CONVERSION(boost::uint16_t , boost::int16_t, !cTrivial, integral_to_integral, signed_to_unsigned, builtin_to_builtin, cSubRanged );
  102. DEFINE_CONVERSION(boost::int16_t , boost::int16_t, cTrivial, integral_to_integral, signed_to_signed , builtin_to_builtin, !cSubRanged );
  103. DEFINE_CONVERSION(boost::uint32_t , boost::int16_t, !cTrivial, integral_to_integral, signed_to_unsigned, builtin_to_builtin, cSubRanged );
  104. DEFINE_CONVERSION(boost::int32_t , boost::int16_t, !cTrivial, integral_to_integral, signed_to_signed , builtin_to_builtin, !cSubRanged );
  105. DEFINE_CONVERSION(float , boost::int16_t, !cTrivial, integral_to_float , signed_to_signed , builtin_to_builtin, !cSubRanged );
  106. DEFINE_CONVERSION(double , boost::int16_t, !cTrivial, integral_to_float , signed_to_signed , builtin_to_builtin, !cSubRanged );
  107. DEFINE_CONVERSION(long double , boost::int16_t, !cTrivial, integral_to_float , signed_to_signed , builtin_to_builtin, !cSubRanged );
  108. DEFINE_CONVERSION(MyInt , boost::int16_t, !cTrivial, integral_to_integral, signed_to_signed , builtin_to_udt , !cSubRanged );
  109. DEFINE_CONVERSION(MyFloat , boost::int16_t, !cTrivial, integral_to_float , signed_to_signed , builtin_to_udt , !cSubRanged );
  110. DEFINE_CONVERSION(boost::uint8_t , boost::uint32_t, !cTrivial, integral_to_integral, unsigned_to_unsigned, builtin_to_builtin, cSubRanged );
  111. DEFINE_CONVERSION(boost::int8_t , boost::uint32_t, !cTrivial, integral_to_integral, unsigned_to_signed , builtin_to_builtin, cSubRanged );
  112. DEFINE_CONVERSION(boost::uint16_t , boost::uint32_t, !cTrivial, integral_to_integral, unsigned_to_unsigned, builtin_to_builtin, cSubRanged );
  113. DEFINE_CONVERSION(boost::int16_t , boost::uint32_t, !cTrivial, integral_to_integral, unsigned_to_signed , builtin_to_builtin, cSubRanged );
  114. DEFINE_CONVERSION(boost::uint32_t , boost::uint32_t, cTrivial, integral_to_integral, unsigned_to_unsigned, builtin_to_builtin, !cSubRanged );
  115. DEFINE_CONVERSION(boost::int32_t , boost::uint32_t, !cTrivial, integral_to_integral, unsigned_to_signed , builtin_to_builtin, cSubRanged );
  116. DEFINE_CONVERSION(float , boost::uint32_t, !cTrivial, integral_to_float , unsigned_to_signed , builtin_to_builtin, !cSubRanged );
  117. DEFINE_CONVERSION(double , boost::uint32_t, !cTrivial, integral_to_float , unsigned_to_signed , builtin_to_builtin, !cSubRanged );
  118. DEFINE_CONVERSION(long double , boost::uint32_t, !cTrivial, integral_to_float , unsigned_to_signed , builtin_to_builtin, !cSubRanged );
  119. DEFINE_CONVERSION(MyInt , boost::uint32_t, !cTrivial, integral_to_integral, unsigned_to_signed , builtin_to_udt , !cSubRanged );
  120. DEFINE_CONVERSION(MyFloat , boost::uint32_t, !cTrivial, integral_to_float , unsigned_to_signed , builtin_to_udt , !cSubRanged );
  121. DEFINE_CONVERSION(boost::uint8_t , boost::int32_t, !cTrivial, integral_to_integral, signed_to_unsigned, builtin_to_builtin, cSubRanged );
  122. DEFINE_CONVERSION(boost::int8_t , boost::int32_t, !cTrivial, integral_to_integral, signed_to_signed , builtin_to_builtin, cSubRanged );
  123. DEFINE_CONVERSION(boost::uint16_t , boost::int32_t, !cTrivial, integral_to_integral, signed_to_unsigned, builtin_to_builtin, cSubRanged );
  124. DEFINE_CONVERSION(boost::int16_t , boost::int32_t, !cTrivial, integral_to_integral, signed_to_signed , builtin_to_builtin, cSubRanged );
  125. DEFINE_CONVERSION(boost::uint32_t , boost::int32_t, !cTrivial, integral_to_integral, signed_to_unsigned, builtin_to_builtin, cSubRanged );
  126. DEFINE_CONVERSION(boost::int32_t , boost::int32_t, cTrivial, integral_to_integral, signed_to_signed , builtin_to_builtin, !cSubRanged );
  127. DEFINE_CONVERSION(float , boost::int32_t, !cTrivial, integral_to_float , signed_to_signed , builtin_to_builtin, !cSubRanged );
  128. DEFINE_CONVERSION(double , boost::int32_t, !cTrivial, integral_to_float , signed_to_signed , builtin_to_builtin, !cSubRanged );
  129. DEFINE_CONVERSION(long double , boost::int32_t, !cTrivial, integral_to_float , signed_to_signed , builtin_to_builtin, !cSubRanged );
  130. DEFINE_CONVERSION(MyInt , boost::int32_t, !cTrivial, integral_to_integral, signed_to_signed , builtin_to_udt , !cSubRanged );
  131. DEFINE_CONVERSION(MyFloat , boost::int32_t, !cTrivial, integral_to_float , signed_to_signed , builtin_to_udt , !cSubRanged );
  132. DEFINE_CONVERSION(boost::uint8_t , float, !cTrivial, float_to_integral, signed_to_unsigned, builtin_to_builtin, cSubRanged );
  133. DEFINE_CONVERSION(boost::int8_t , float, !cTrivial, float_to_integral, signed_to_signed , builtin_to_builtin, cSubRanged );
  134. DEFINE_CONVERSION(boost::uint16_t , float, !cTrivial, float_to_integral, signed_to_unsigned, builtin_to_builtin, cSubRanged );
  135. DEFINE_CONVERSION(boost::int16_t , float, !cTrivial, float_to_integral, signed_to_signed , builtin_to_builtin, cSubRanged );
  136. DEFINE_CONVERSION(boost::uint32_t , float, !cTrivial, float_to_integral, signed_to_unsigned, builtin_to_builtin, cSubRanged );
  137. DEFINE_CONVERSION(boost::int32_t , float, !cTrivial, float_to_integral, signed_to_signed , builtin_to_builtin, cSubRanged );
  138. DEFINE_CONVERSION(float , float, cTrivial, float_to_float , signed_to_signed , builtin_to_builtin, !cSubRanged );
  139. DEFINE_CONVERSION(double , float, !cTrivial, float_to_float , signed_to_signed , builtin_to_builtin, ( sizeof(float) > sizeof(double) ) );
  140. DEFINE_CONVERSION(long double , float, !cTrivial, float_to_float , signed_to_signed , builtin_to_builtin, ( sizeof(float) > sizeof(long double) ) );
  141. DEFINE_CONVERSION(MyInt , float, !cTrivial, float_to_integral, signed_to_signed , builtin_to_udt , !cSubRanged );
  142. DEFINE_CONVERSION(MyFloat , float, !cTrivial, float_to_float , signed_to_signed , builtin_to_udt , !cSubRanged );
  143. DEFINE_CONVERSION(boost::uint8_t , double, !cTrivial, float_to_integral, signed_to_unsigned, builtin_to_builtin, cSubRanged );
  144. DEFINE_CONVERSION(boost::int8_t , double, !cTrivial, float_to_integral, signed_to_signed , builtin_to_builtin, cSubRanged );
  145. DEFINE_CONVERSION(boost::uint16_t , double, !cTrivial, float_to_integral, signed_to_unsigned, builtin_to_builtin, cSubRanged );
  146. DEFINE_CONVERSION(boost::int16_t , double, !cTrivial, float_to_integral, signed_to_signed , builtin_to_builtin, cSubRanged );
  147. DEFINE_CONVERSION(boost::uint32_t , double, !cTrivial, float_to_integral, signed_to_unsigned, builtin_to_builtin, cSubRanged );
  148. DEFINE_CONVERSION(boost::int32_t , double, !cTrivial, float_to_integral, signed_to_signed , builtin_to_builtin, cSubRanged );
  149. DEFINE_CONVERSION(float , double, !cTrivial, float_to_float , signed_to_signed , builtin_to_builtin, ( sizeof(double) > sizeof(float) ) );
  150. DEFINE_CONVERSION(double , double, cTrivial, float_to_float , signed_to_signed , builtin_to_builtin, !cSubRanged );
  151. DEFINE_CONVERSION(long double , double, !cTrivial, float_to_float , signed_to_signed , builtin_to_builtin, ( sizeof(double) > sizeof(long double) ) );
  152. DEFINE_CONVERSION(MyInt , double, !cTrivial, float_to_integral, signed_to_signed , builtin_to_udt , !cSubRanged );
  153. DEFINE_CONVERSION(MyFloat , double, !cTrivial, float_to_float , signed_to_signed , builtin_to_udt , !cSubRanged );
  154. DEFINE_CONVERSION(boost::uint8_t , long double, !cTrivial, float_to_integral, signed_to_unsigned, builtin_to_builtin, cSubRanged );
  155. DEFINE_CONVERSION(boost::int8_t , long double, !cTrivial, float_to_integral, signed_to_signed , builtin_to_builtin, cSubRanged );
  156. DEFINE_CONVERSION(boost::uint16_t , long double, !cTrivial, float_to_integral, signed_to_unsigned, builtin_to_builtin, cSubRanged );
  157. DEFINE_CONVERSION(boost::int16_t , long double, !cTrivial, float_to_integral, signed_to_signed , builtin_to_builtin, cSubRanged );
  158. DEFINE_CONVERSION(boost::uint32_t , long double, !cTrivial, float_to_integral, signed_to_unsigned, builtin_to_builtin, cSubRanged );
  159. DEFINE_CONVERSION(boost::int32_t , long double, !cTrivial, float_to_integral, signed_to_signed , builtin_to_builtin, cSubRanged );
  160. DEFINE_CONVERSION(float , long double, !cTrivial, float_to_float , signed_to_signed , builtin_to_builtin, ( sizeof(long double) > sizeof(float) ) );
  161. DEFINE_CONVERSION(double , long double, !cTrivial, float_to_float , signed_to_signed , builtin_to_builtin, ( sizeof(long double) > sizeof(double) ) );
  162. DEFINE_CONVERSION(long double , long double, cTrivial, float_to_float , signed_to_signed , builtin_to_builtin, !cSubRanged );
  163. DEFINE_CONVERSION(MyInt , long double, !cTrivial, float_to_integral, signed_to_signed , builtin_to_udt , !cSubRanged );
  164. DEFINE_CONVERSION(MyFloat , long double, !cTrivial, float_to_float , signed_to_signed , builtin_to_udt , !cSubRanged );
  165. DEFINE_CONVERSION(boost::uint8_t , MyInt, !cTrivial, integral_to_integral, signed_to_unsigned, udt_to_builtin , cSubRanged );
  166. DEFINE_CONVERSION(boost::int8_t , MyInt, !cTrivial, integral_to_integral, signed_to_signed , udt_to_builtin , cSubRanged );
  167. DEFINE_CONVERSION(boost::uint16_t , MyInt, !cTrivial, integral_to_integral, signed_to_unsigned, udt_to_builtin , cSubRanged );
  168. DEFINE_CONVERSION(boost::int16_t , MyInt, !cTrivial, integral_to_integral, signed_to_signed , udt_to_builtin , cSubRanged );
  169. DEFINE_CONVERSION(boost::uint32_t , MyInt, !cTrivial, integral_to_integral, signed_to_unsigned, udt_to_builtin , cSubRanged );
  170. DEFINE_CONVERSION(boost::int32_t , MyInt, !cTrivial, integral_to_integral, signed_to_signed , udt_to_builtin , cSubRanged );
  171. DEFINE_CONVERSION(float , MyInt, !cTrivial, integral_to_float , signed_to_signed , udt_to_builtin , cSubRanged );
  172. DEFINE_CONVERSION(double , MyInt, !cTrivial, integral_to_float , signed_to_signed , udt_to_builtin , cSubRanged );
  173. DEFINE_CONVERSION(long double , MyInt, !cTrivial, integral_to_float , signed_to_signed , udt_to_builtin , cSubRanged );
  174. DEFINE_CONVERSION(MyInt , MyInt, cTrivial, integral_to_integral, signed_to_signed , udt_to_udt ,!cSubRanged );
  175. DEFINE_CONVERSION(MyFloat , MyInt, !cTrivial, integral_to_float , signed_to_signed , udt_to_udt ,!cSubRanged );
  176. DEFINE_CONVERSION(boost::uint8_t , MyFloat, !cTrivial, float_to_integral, signed_to_unsigned, udt_to_builtin , cSubRanged );
  177. DEFINE_CONVERSION(boost::int8_t , MyFloat, !cTrivial, float_to_integral, signed_to_signed , udt_to_builtin , cSubRanged );
  178. DEFINE_CONVERSION(boost::uint16_t , MyFloat, !cTrivial, float_to_integral, signed_to_unsigned, udt_to_builtin , cSubRanged );
  179. DEFINE_CONVERSION(boost::int16_t , MyFloat, !cTrivial, float_to_integral, signed_to_signed , udt_to_builtin , cSubRanged );
  180. DEFINE_CONVERSION(boost::uint32_t , MyFloat, !cTrivial, float_to_integral, signed_to_unsigned, udt_to_builtin , cSubRanged );
  181. DEFINE_CONVERSION(boost::int32_t , MyFloat, !cTrivial, float_to_integral, signed_to_signed , udt_to_builtin , cSubRanged );
  182. DEFINE_CONVERSION(float , MyFloat, !cTrivial, float_to_float , signed_to_signed , udt_to_builtin , cSubRanged );
  183. DEFINE_CONVERSION(double , MyFloat, !cTrivial, float_to_float , signed_to_signed , udt_to_builtin , cSubRanged );
  184. DEFINE_CONVERSION(long double , MyFloat, !cTrivial, float_to_float , signed_to_signed , udt_to_builtin , cSubRanged );
  185. DEFINE_CONVERSION(MyInt , MyFloat, !cTrivial, float_to_integral, signed_to_signed , udt_to_udt ,!cSubRanged );
  186. DEFINE_CONVERSION(MyFloat , MyFloat, cTrivial, float_to_float , signed_to_signed , udt_to_udt ,!cSubRanged );
  187. //
  188. // The test is performed by comparing each field of
  189. // boost::numeric::conversion_traits<T,S>
  190. // with the fields of
  191. // expected_traits<T,S>
  192. // which is a traits class constructed explicitely for each combination
  193. // of the built-in arithmetic types.
  194. //
  195. template<class T,
  196. class S,
  197. class Supertype,
  198. class Subtype,
  199. class Subranged,
  200. class Trivial
  201. >
  202. struct expected_traits
  203. {
  204. typedef typename my_int_float_mixture <T,S>::type int_float_mixture ;
  205. typedef typename my_sign_mixture <T,S>::type sign_mixture ;
  206. typedef typename my_udt_builtin_mixture <T,S>::type udt_builtin_mixture ;
  207. typedef Subranged subranged ;
  208. typedef Trivial trivial ;
  209. typedef Supertype supertype ;
  210. typedef Subtype subtype ;
  211. } ;
  212. // This is used by the test engine to generate a expected_traits from T and S.
  213. //
  214. template<class T, class S>
  215. struct generate_expected_traits
  216. {
  217. typedef expected_traits<T, S, T, S, mpl::false_, mpl::true_ > trivial ;
  218. typedef expected_traits<T, S, S, T, mpl::true_ , mpl::false_ > subranged ;
  219. typedef expected_traits<T, S, T, S, mpl::false_, mpl::false_ > non_subranged ;
  220. typedef typename my_is_subranged<T,S>::type IsSubranged ;
  221. typedef typename my_is_trivial <T,S>::type IsTrivial ;
  222. typedef typename mpl::if_<IsSubranged,subranged,non_subranged>::type non_trivial ;
  223. typedef typename mpl::if_<IsTrivial,trivial,non_trivial>::type type ;
  224. } ;
  225. // This macro generates the code that compares a non-type field
  226. // in boost::numeric::conversion_traits<> with its corresponding field
  227. // in expected_traits<>
  228. //
  229. #define TEST_VALUE_FIELD(Name) \
  230. typedef typename traits::Name BOOST_PP_CAT(t,Name) ; \
  231. typedef typename expected::Name BOOST_PP_CAT(x,Name) ; \
  232. BOOST_CHECK_MESSAGE ( ( BOOST_PP_CAT(t,Name)::value == BOOST_PP_CAT(x,Name)::value ) , \
  233. "conversion_traits<" << typeid(T).name() << "," << typeid(S).name() \
  234. << ">::" << #Name << " = " << to_string(BOOST_PP_CAT(t,Name)::value) \
  235. << ". Expected: " << to_string(BOOST_PP_CAT(x,Name)::value) \
  236. ) ;
  237. // This macro generates the code that compares a type field
  238. // in numeric::conversion_traits<> with its corresponding field
  239. // in expected_traits<>
  240. //
  241. #define TEST_TYPE_FIELD(Name) \
  242. typedef typename traits::Name BOOST_PP_CAT(t,Name) ; \
  243. typedef typename expected::Name BOOST_PP_CAT(x,Name) ; \
  244. BOOST_CHECK_MESSAGE ( ( typeid(BOOST_PP_CAT(t,Name)) == typeid(BOOST_PP_CAT(x,Name)) ) , \
  245. "conversion_traits<" << typeid(T).name() << "," << typeid(S).name() \
  246. << ">::" << #Name << " = " << typeid(BOOST_PP_CAT(t,Name)).name() \
  247. << ". Expected: " << typeid(BOOST_PP_CAT(x,Name)).name() \
  248. ) ;
  249. //
  250. // Test core.
  251. // Compares each field of boost::numeric::conversion_traits<T,S>
  252. // with the corresponding field of expected_traits<T,S>
  253. //
  254. template<class T, class S>
  255. void test_traits_base( MATCH_FNTPL_ARG(T), MATCH_FNTPL_ARG(S) )
  256. {
  257. typedef boost::numeric::conversion_traits<T,S> traits ;
  258. typedef typename generate_expected_traits<T,S>::type expected ;
  259. TEST_VALUE_FIELD(int_float_mixture) ;
  260. TEST_VALUE_FIELD(sign_mixture) ;
  261. TEST_VALUE_FIELD(udt_builtin_mixture) ;
  262. TEST_VALUE_FIELD(subranged) ;
  263. TEST_VALUE_FIELD(trivial) ;
  264. TEST_TYPE_FIELD (supertype) ;
  265. TEST_TYPE_FIELD (subtype) ;
  266. }
  267. template<class S>
  268. void test_traits_from( MATCH_FNTPL_ARG(S) )
  269. {
  270. test_traits_base( SET_FNTPL_ARG(boost::uint8_t) ,SET_FNTPL_ARG(S) );
  271. test_traits_base( SET_FNTPL_ARG(boost::int8_t) ,SET_FNTPL_ARG(S) );
  272. test_traits_base( SET_FNTPL_ARG(boost::uint16_t) ,SET_FNTPL_ARG(S) );
  273. test_traits_base( SET_FNTPL_ARG(boost::int16_t) ,SET_FNTPL_ARG(S) );
  274. test_traits_base( SET_FNTPL_ARG(boost::uint32_t) ,SET_FNTPL_ARG(S) );
  275. test_traits_base( SET_FNTPL_ARG(boost::int32_t) ,SET_FNTPL_ARG(S) );
  276. test_traits_base( SET_FNTPL_ARG(float) ,SET_FNTPL_ARG(S) );
  277. test_traits_base( SET_FNTPL_ARG(double) ,SET_FNTPL_ARG(S) );
  278. test_traits_base( SET_FNTPL_ARG(long double) ,SET_FNTPL_ARG(S) );
  279. test_traits_base( SET_FNTPL_ARG(MyInt) ,SET_FNTPL_ARG(S) );
  280. test_traits_base( SET_FNTPL_ARG(MyFloat) ,SET_FNTPL_ARG(S) );
  281. }
  282. void test_traits()
  283. {
  284. test_traits_from( SET_FNTPL_ARG(boost::uint8_t) );
  285. test_traits_from( SET_FNTPL_ARG(boost::int8_t) );
  286. test_traits_from( SET_FNTPL_ARG(boost::uint16_t) );
  287. test_traits_from( SET_FNTPL_ARG(boost::int16_t) );
  288. test_traits_from( SET_FNTPL_ARG(boost::uint32_t) );
  289. test_traits_from( SET_FNTPL_ARG(boost::int32_t) );
  290. test_traits_from( SET_FNTPL_ARG(float) );
  291. test_traits_from( SET_FNTPL_ARG(double) );
  292. test_traits_from( SET_FNTPL_ARG(long double) );
  293. test_traits_from( SET_FNTPL_ARG(MyInt) );
  294. test_traits_from( SET_FNTPL_ARG(MyFloat) );
  295. }
  296. int test_main( int, char * [])
  297. {
  298. std::cout << std::setprecision( std::numeric_limits<long double>::digits10 ) ;
  299. test_traits();
  300. return 0;
  301. }
  302. //---------------------------------------------------------------------------