product.cpp 3.0 KB

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  1. // Copyright Louis Dionne 2013-2017
  2. // Distributed under the Boost Software License, Version 1.0.
  3. // (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
  4. #include <boost/hana/assert.hpp>
  5. #include <boost/hana/core/make.hpp>
  6. #include <boost/hana/equal.hpp>
  7. #include <boost/hana/integral_constant.hpp>
  8. #include <boost/hana/product.hpp>
  9. #include <boost/hana/range.hpp>
  10. namespace hana = boost::hana;
  11. int main() {
  12. BOOST_HANA_CONSTANT_CHECK(hana::equal(
  13. hana::product<>(hana::make_range(hana::int_c<-3>, hana::int_c<-3>)),
  14. hana::int_c<1>
  15. ));
  16. BOOST_HANA_CONSTANT_CHECK(hana::equal(
  17. hana::product<>(hana::make_range(hana::int_c<-3>, hana::int_c<-2>)),
  18. hana::int_c<-3>
  19. ));
  20. BOOST_HANA_CONSTANT_CHECK(hana::equal(
  21. hana::product<>(hana::make_range(hana::int_c<-3>, hana::int_c<-1>)),
  22. hana::int_c<-3 * -2>
  23. ));
  24. BOOST_HANA_CONSTANT_CHECK(hana::equal(
  25. hana::product<>(hana::make_range(hana::int_c<-3>, hana::int_c<0>)),
  26. hana::int_c<-3 * -2 * -1>
  27. ));
  28. BOOST_HANA_CONSTANT_CHECK(hana::equal(
  29. hana::product<>(hana::make_range(hana::int_c<-3>, hana::int_c<1>)),
  30. hana::int_c<-3 * -2 * -1 * 0>
  31. ));
  32. BOOST_HANA_CONSTANT_CHECK(hana::equal(
  33. hana::product<>(hana::make_range(hana::int_c<-3>, hana::int_c<2>)),
  34. hana::int_c<-3 * -2 * -1 * 0 * 1>
  35. ));
  36. BOOST_HANA_CONSTANT_CHECK(hana::equal(
  37. hana::product<>(hana::make_range(hana::int_c<-3>, hana::int_c<3>)),
  38. hana::int_c<-3 * -2 * -1 * 0 * 1 * 2>
  39. ));
  40. BOOST_HANA_CONSTANT_CHECK(hana::equal(
  41. hana::product<>(hana::make_range(hana::int_c<1>, hana::int_c<1>)),
  42. hana::int_c<1>
  43. ));
  44. BOOST_HANA_CONSTANT_CHECK(hana::equal(
  45. hana::product<>(hana::make_range(hana::int_c<1>, hana::int_c<2>)),
  46. hana::int_c<1>
  47. ));
  48. BOOST_HANA_CONSTANT_CHECK(hana::equal(
  49. hana::product<>(hana::make_range(hana::int_c<1>, hana::int_c<3>)),
  50. hana::int_c<1 * 2>
  51. ));
  52. BOOST_HANA_CONSTANT_CHECK(hana::equal(
  53. hana::product<>(hana::make_range(hana::int_c<1>, hana::int_c<4>)),
  54. hana::int_c<1 * 2 * 3>
  55. ));
  56. BOOST_HANA_CONSTANT_CHECK(hana::equal(
  57. hana::product<>(hana::make_range(hana::int_c<1>, hana::int_c<5>)),
  58. hana::int_c<1 * 2 * 3 * 4>
  59. ));
  60. BOOST_HANA_CONSTANT_CHECK(hana::equal(
  61. hana::product<>(hana::make_range(hana::int_c<3>, hana::int_c<3>)),
  62. hana::int_c<1>
  63. ));
  64. BOOST_HANA_CONSTANT_CHECK(hana::equal(
  65. hana::product<>(hana::make_range(hana::int_c<3>, hana::int_c<4>)),
  66. hana::int_c<3>
  67. ));
  68. BOOST_HANA_CONSTANT_CHECK(hana::equal(
  69. hana::product<>(hana::make_range(hana::int_c<3>, hana::int_c<5>)),
  70. hana::int_c<3 * 4>
  71. ));
  72. BOOST_HANA_CONSTANT_CHECK(hana::equal(
  73. hana::product<>(hana::make_range(hana::int_c<3>, hana::int_c<6>)),
  74. hana::int_c<3 * 4 * 5>
  75. ));
  76. BOOST_HANA_CONSTANT_CHECK(hana::equal(
  77. hana::product<>(hana::make_range(hana::int_c<3>, hana::int_c<7>)),
  78. hana::int_c<3 * 4 * 5 * 6>
  79. ));
  80. }