ceph/src/boost/libs/multiprecision/test/constexpr_test_arithmetic_backend.cpp

   1 //  (C) Copyright John Maddock 2019.
   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 #include "constexpr_arithmetric_test.hpp"
   7 #include "../performance/arithmetic_backend.hpp"
   8
   9 int main()
  10 {
  11    typedef boost::multiprecision::number<boost::multiprecision::backends::arithmetic_backend<long long>, boost::multiprecision::et_off>          int_backend;
  12    typedef boost::multiprecision::number<boost::multiprecision::backends::arithmetic_backend<unsigned long long>, boost::multiprecision::et_off> unsigned_backend;
  13
  14    typedef boost::multiprecision::number<boost::multiprecision::backends::arithmetic_backend<long long>, boost::multiprecision::et_on>          int_backend_et;
  15    typedef boost::multiprecision::number<boost::multiprecision::backends::arithmetic_backend<unsigned long long>, boost::multiprecision::et_on> unsigned_backend_et;
  16
  17    {
  18       constexpr int_backend a(22);
  19       constexpr unsigned_backend c(22);
  20       constexpr int_backend b      = test_constexpr_add_subtract(a);
  21       constexpr unsigned_backend d = test_constexpr_add_subtract(c);
  22
  23       constexpr long long llv = (long long)b;
  24
  25       static_assert(b == -108);
  26       static_assert(d == 554);
  27    }
  28    {
  29       constexpr int_backend a(22);
  30       constexpr unsigned_backend c(22);
  31       constexpr int_backend b      = test_constexpr_mul_divide(a);
  32       constexpr unsigned_backend d = test_constexpr_mul_divide(c);
  33       static_assert(b == 22);
  34       static_assert(d == 22);
  35    }
  36    {
  37       constexpr int_backend a(22);
  38       constexpr unsigned_backend c(22);
  39       constexpr int_backend b      = test_constexpr_bitwise(a);
  40       constexpr unsigned_backend d = test_constexpr_bitwise(c);
  41 #ifdef BOOST_HAS_INT128
  42       static_assert(b == 230);
  43       static_assert(d == 120);
  44 #else
  45       static_assert(b == 210);
  46       static_assert(d == 106);
  47 #endif
  48    }
  49    {
  50       constexpr int_backend a(22);
  51       constexpr unsigned_backend c(22);
  52       constexpr int_backend b      = test_constexpr_logical(a);
  53       constexpr unsigned_backend d = test_constexpr_logical(c);
  54       static_assert(b == 82);
  55       static_assert(d == 82);
  56    }
  57    {
  58       constexpr int_backend a(22);
  59       constexpr unsigned_backend c(22);
  60       constexpr int_backend b      = test_constexpr_compare(a);
  61       constexpr unsigned_backend d = test_constexpr_compare(c);
  62       static_assert(b == 95);
  63       static_assert(d == 95);
  64    }
  65    //
  66    // Over again with expression templates turned on:
  67    //
  68    {
  69       constexpr int_backend_et a(22);
  70       constexpr unsigned_backend_et c(22);
  71       constexpr int_backend_et b      = test_constexpr_add_subtract(a);
  72       constexpr unsigned_backend_et d = test_constexpr_add_subtract(c);
  73
  74       static_assert(b == -108);
  75       static_assert(d == 554);
  76    }
  77    {
  78       constexpr int_backend_et a(22);
  79       constexpr unsigned_backend_et c(22);
  80       constexpr int_backend_et b      = test_constexpr_mul_divide(a);
  81       constexpr unsigned_backend_et d = test_constexpr_mul_divide(c);
  82       static_assert(b == 22);
  83       static_assert(d == 22);
  84    }
  85    {
  86       constexpr int_backend_et a(22);
  87       constexpr unsigned_backend_et c(22);
  88       constexpr int_backend_et b      = test_constexpr_bitwise(a);
  89       constexpr unsigned_backend_et d = test_constexpr_bitwise(c);
  90 #ifdef BOOST_HAS_INT128
  91       static_assert(b == 230);
  92       static_assert(d == 120);
  93 #else
  94       static_assert(b == 210);
  95       static_assert(d == 106);
  96 #endif
  97    }
  98    {
  99       constexpr int_backend_et a(22);
 100       constexpr unsigned_backend_et c(22);
 101       constexpr int_backend_et b      = test_constexpr_logical(a);
 102       constexpr unsigned_backend_et d = test_constexpr_logical(c);
 103       static_assert(b == 82);
 104       static_assert(d == 82);
 105    }
 106    {
 107       constexpr int_backend_et a(22);
 108       constexpr unsigned_backend_et c(22);
 109       constexpr int_backend_et b      = test_constexpr_compare(a);
 110       constexpr unsigned_backend_et d = test_constexpr_compare(c);
 111       static_assert(b == 95);
 112       static_assert(d == 95);
 113    }
 114    std::cout << "Done!" << std::endl;
 115 }