is_float_test.cpp 2.6 KB

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  1. // (C) Copyright John Maddock 2000.
  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_float.hpp>
  9. #endif
  10. #include "test.hpp"
  11. #include "check_integral_constant.hpp"
  12. TT_TEST_BEGIN(is_float)
  13. BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_float<float>::value, true);
  14. BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_float<float const>::value, true);
  15. BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_float<float volatile>::value, true);
  16. BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_float<float const volatile>::value, true);
  17. BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_float<double>::value, true);
  18. BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_float<double const>::value, true);
  19. BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_float<double volatile>::value, true);
  20. BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_float<double const volatile>::value, true);
  21. BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_float<long double>::value, true);
  22. BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_float<long double const>::value, true);
  23. BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_float<long double volatile>::value, true);
  24. BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_float<long double const volatile>::value, true);
  25. //
  26. // cases that should not be true:
  27. //
  28. BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_float<void>::value, false);
  29. BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_float<int>::value, false);
  30. BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_float<UDT>::value, false);
  31. BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_float<test_abc1>::value, false);
  32. BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_float<empty_UDT>::value, false);
  33. BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_float<float*>::value, false);
  34. BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_float<float&>::value, false);
  35. #ifndef BOOST_NO_CXX11_RVALUE_REFERENCES
  36. BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_float<float&&>::value, false);
  37. #endif
  38. BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_float<const float&>::value, false);
  39. BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_float<float[2]>::value, false);
  40. //
  41. // tricky cases:
  42. //
  43. BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_float<test_abc1>::value, false);
  44. BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_float<foo0_t>::value, false);
  45. BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_float<foo1_t>::value, false);
  46. BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_float<foo2_t>::value, false);
  47. BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_float<foo3_t>::value, false);
  48. BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_float<foo4_t>::value, false);
  49. BOOST_CHECK_INTEGRAL_CONSTANT(::tt::is_float<incomplete_type>::value, false);
  50. TT_TEST_END