is_floating_point_test.cpp 3.3 KB

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  1. // (C) Copyright John Maddock 2005.
  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. #ifdef TEST_STD
  6. # include <type_traits>
  7. #else
  8. # include <boost/type_traits/is_floating_point.hpp>
  9. #endif
  10. #include "test.hpp"
  11. #include "check_integral_constant.hpp"
  12. TT_TEST_BEGIN(is_floating_point)
  13. BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_floating_point<float>::value, true);
  14. BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_floating_point<float const>::value, true);
  15. BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_floating_point<float volatile>::value, true);
  16. BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_floating_point<float const volatile>::value, true);
  17. BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_floating_point<double>::value, true);
  18. BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_floating_point<double const>::value, true);
  19. BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_floating_point<double volatile>::value, true);
  20. BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_floating_point<double const volatile>::value, true);
  21. BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_floating_point<long double>::value, true);
  22. BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_floating_point<long double const>::value, true);
  23. BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_floating_point<long double volatile>::value, true);
  24. BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_floating_point<long double const volatile>::value, true);
  25. #ifdef BOOST_HAS_FLOAT128
  26. BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_floating_point<__float128>::value, true);
  27. BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_floating_point<const __float128>::value, true);
  28. BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_floating_point<volatile __float128>::value, true);
  29. BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_floating_point<const volatile __float128>::value, true);
  30. #endif
  31. //
  32. // cases that should not be true:
  33. //
  34. BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_floating_point<void>::value, false);
  35. BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_floating_point<int>::value, false);
  36. BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_floating_point<UDT>::value, false);
  37. BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_floating_point<test_abc1>::value, false);
  38. BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_floating_point<empty_UDT>::value, false);
  39. BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_floating_point<float*>::value, false);
  40. BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_floating_point<float&>::value, false);
  41. #ifndef BOOST_NO_CXX11_RVALUE_REFERENCES
  42. BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_floating_point<float&&>::value, false);
  43. #endif
  44. BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_floating_point<const float&>::value, false);
  45. BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_floating_point<float[2]>::value, false);
  46. //
  47. // tricky cases:
  48. //
  49. BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_floating_point<test_abc1>::value, false);
  50. BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_floating_point<foo0_t>::value, false);
  51. BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_floating_point<foo1_t>::value, false);
  52. BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_floating_point<foo2_t>::value, false);
  53. BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_floating_point<foo3_t>::value, false);
  54. BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_floating_point<foo4_t>::value, false);
  55. BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_floating_point<incomplete_type>::value, false);
  56. TT_TEST_END