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https://github.com/boostorg/multiprecision.git
synced 2026-01-27 19:12:10 +00:00
Restore yet again non-Boost-ified standalone
This commit is contained in:
Christopher Kormanyos
@@ -12,7 +12,7 @@
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// g++ -O3 -Wall -march=native -std=c++11 -I/mnt/c/MyGitRepos/BoostGSoC21_multiprecision/include -I/mnt/c/boost/boost_1_76_0 test.cpp -o test_double_float.exe
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// TBD: Handle interaction with Boost's wrap of libquadmath __float128.
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// g++ -O3 -Wall -march=native -std=gnu++11 -I/mnt/c/MyGitRepos/BoostGSoC21_multiprecision/include -I/mnt/c/boost/boost_1_76_0 -DBOOST_MATH_USE_FLOAT128 test.cpp -lquadmath -o test_double_float.exe
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// g++ -O3 -Wall -march=native -std=gnu++11 -I/mnt/c/MyGitRepos/BoostGSoC21_multiprecision/include -I/mnt/c/boost/boost_1_76_0 -DBOOST_MATH_USE_FLOAT128 test.cpp -o -lquadmath test_double_float.exe
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#include <ctime>
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#include <iomanip>
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@@ -33,9 +33,9 @@
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namespace test_arithmetic_cpp_double_float {
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template<typename FloatingPointType,
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typename std::enable_if<(boost::multiprecision::backends::detail::is_floating_point_or_float128<FloatingPointType>::value == true), bool>::type = true>
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FloatingPointType uniform_real(const FloatingPointType&)
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template <typename FloatingPointType,
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typename std::enable_if<( boost::multiprecision::backends::detail::is_floating_point_or_float128<FloatingPointType>::value == true), bool>::type = true>
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FloatingPointType uniform_real()
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{
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using distribution_type = boost::random::uniform_real_distribution<FloatingPointType>;
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@@ -43,7 +43,7 @@ FloatingPointType uniform_real(const FloatingPointType&)
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static std::random_device rd;
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static std::mt19937 gen(rd());
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static distribution_type dis(FloatingPointType(0.0L), FloatingPointType(1.0L));
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static distribution_type dis(0.0, 1.0);
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if((seed_scaler % 0x100000UL) == 0U)
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{
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@@ -55,91 +55,68 @@ FloatingPointType uniform_real(const FloatingPointType&)
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int rand_in_range(int a, int b)
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{
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return a + int(float(b - a) * uniform_real<float>(1.0F));
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return a + int(float(b - a) * uniform_real<float>());
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}
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template<typename FloatingPointType,
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typename std::enable_if<(boost::multiprecision::backends::detail::is_floating_point_or_float128<FloatingPointType>::value == true), bool>::type = true>
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FloatingPointType uniform_rand(const FloatingPointType&)
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template <typename FloatingPointType,
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typename std::enable_if<( boost::multiprecision::backends::detail::is_floating_point_or_float128<FloatingPointType>::value == true), bool>::type = true>
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FloatingPointType uniform_rand()
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{
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return uniform_real<FloatingPointType>(FloatingPointType(1.0F));
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return uniform_real<FloatingPointType>();
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}
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template <typename CompositeFloatType>
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CompositeFloatType uniform_rand(const CompositeFloatType&)
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template <typename FloatingPointType>
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boost::multiprecision::backends::cpp_double_float<typename FloatingPointType::float_type> uniform_rand()
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{
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using float_type = typename CompositeFloatType::backend_type::float_type;
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return CompositeFloatType(uniform_real<float_type>(float_type()))
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* CompositeFloatType(uniform_real<float_type>(float_type()));
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using float_type = typename FloatingPointType::float_type;
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return boost::multiprecision::backends::cpp_double_float<float_type>(uniform_real<float_type>()) * boost::multiprecision::backends::cpp_double_float<float_type>(uniform_real<float_type>());
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}
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template<typename FloatingPointType,
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typename std::enable_if<(boost::multiprecision::backends::detail::is_floating_point_or_float128<FloatingPointType>::value == true), bool>::type = true>
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FloatingPointType log_rand(const FloatingPointType&)
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template <typename FloatingPointType>
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typename std::enable_if<( boost::multiprecision::backends::detail::is_floating_point_or_float128<FloatingPointType>::value == true), FloatingPointType>::type
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log_rand()
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{
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if (uniform_real<float>(1.0F) < (1.0F / 100.0F))
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if (uniform_real<float>() < (1. / 100.))
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return 0; // throw in a few zeroes
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using std::ldexp;
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using boost::multiprecision::ldexp;
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FloatingPointType ret = ldexp(uniform_real<FloatingPointType>(FloatingPointType(1.0F)), rand_in_range(std::numeric_limits<FloatingPointType>::min_exponent, std::numeric_limits<FloatingPointType>::max_exponent));
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FloatingPointType ret = ldexp(uniform_real<FloatingPointType>(), rand_in_range(std::numeric_limits<FloatingPointType>::min_exponent, std::numeric_limits<FloatingPointType>::max_exponent));
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using std::fmax;
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return fmax(ret, std::numeric_limits<FloatingPointType>::epsilon());
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}
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template<typename CompositeFloatType,
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typename std::enable_if<(boost::multiprecision::backends::detail::is_floating_point_or_float128<CompositeFloatType>::value == false), bool>::type = true>
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CompositeFloatType log_rand(const CompositeFloatType&)
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template <typename FloatingPointType>
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boost::multiprecision::backends::cpp_double_float<typename FloatingPointType::float_type> log_rand()
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{
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using float_type = typename CompositeFloatType::backend_type::float_type;
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CompositeFloatType
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a
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(
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uniform_rand<CompositeFloatType>(CompositeFloatType(1.0F))
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+ CompositeFloatType(float_type(1.0F))
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);
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a *= CompositeFloatType(log_rand<float_type>(float_type(1.0F)));
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boost::multiprecision::backends::cpp_double_float<typename FloatingPointType::float_type> a(uniform_rand<boost::multiprecision::backends::cpp_double_float<typename FloatingPointType::float_type> >() + typename FloatingPointType::float_type(1));
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a *= log_rand<typename FloatingPointType::float_type>();
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return a;
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}
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template <typename ConstructionType, typename FloatingPointType, typename std::enable_if<std::numeric_limits<FloatingPointType>::is_iec559>::type const* = nullptr>
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ConstructionType construct_from(FloatingPointType f)
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{
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ConstructionType construct_from(FloatingPointType f) {
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return ConstructionType(f);
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}
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template <typename ConstructionType, typename FloatingPointType, typename std::enable_if<!std::numeric_limits<FloatingPointType>::is_iec559>::type const* = nullptr>
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ConstructionType construct_from(FloatingPointType f)
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{
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const ConstructionType ct_x(ConstructionType::canonical_value(f).first());
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const ConstructionType ct_y(ConstructionType::canonical_value(f).second());
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const ConstructionType ct = ct_x + ct_y;
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return ct;
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return ConstructionType(f.first()) + ConstructionType(f.second());
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}
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template <typename FloatingPointType>
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bool test_op(char op, const unsigned count = 0x20000U)
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{
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using naked_double_float_type = FloatingPointType;
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using control_float_type = boost::multiprecision::number<boost::multiprecision::cpp_dec_float<std::numeric_limits<naked_double_float_type>::digits10 * 2 + 1>, boost::multiprecision::et_off>;
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constexpr int d10 = std::numeric_limits<naked_double_float_type>::digits10 * 2 + 1;
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using control_float_type = boost::multiprecision::number<boost::multiprecision::cpp_dec_float<d10>, boost::multiprecision::et_off>;
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using boost::multiprecision::ldexp;
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const control_float_type MaxError = ldexp(control_float_type(1), -std::numeric_limits<naked_double_float_type>::digits + 1);
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const control_float_type MaxError = boost::multiprecision::ldexp(control_float_type(1), -std::numeric_limits<naked_double_float_type>::digits + 1);
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std::cout << "testing operator" << op << " (accuracy = " << std::numeric_limits<naked_double_float_type>::digits << " bits)...";
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for (unsigned i = 0U; i < count; ++i)
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{
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naked_double_float_type df_a = log_rand<naked_double_float_type>(naked_double_float_type(1.0F));
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naked_double_float_type df_b = log_rand<naked_double_float_type>(naked_double_float_type(1.0F));
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naked_double_float_type df_a = log_rand<naked_double_float_type>();
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naked_double_float_type df_b = log_rand<naked_double_float_type>();
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const control_float_type ctrl_a = construct_from<control_float_type, naked_double_float_type>(df_a);
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const control_float_type ctrl_b = construct_from<control_float_type, naked_double_float_type>(df_b);
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@@ -186,6 +163,12 @@ bool test_op(char op, const unsigned count = 0x20000U)
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std::cerr << std::setprecision(std::numeric_limits<naked_double_float_type>::digits10 + 2);
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std::cerr << " [FAILED] while performing '" << std::setprecision(100000) << ctrl_a << "' " << op << " '" << ctrl_b << "', got incorrect result: " << (df_c) << std::endl;
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// uncomment for more debugging information (only for cpp_double_float<> type)
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//std::cerr << "(df_a = " << df_a.get_raw_str() << ", df_b = " << df_b.get_raw_str() << ")" << std::endl;
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//std::cerr << "expected: " << ctrl_c << std::endl;
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//std::cerr << "actual : " << ctrl_df_c << " (" << df_c.get_raw_str() << ")" << std::endl;
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//std::cerr << "error : " << delta << std::endl;
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return false;
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}
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}
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@@ -218,11 +201,19 @@ int main()
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{
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bool result_is_ok = true;
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result_is_ok &= test_arithmetic_cpp_double_float::test_arithmetic<boost::multiprecision::number<boost::multiprecision::backends::cpp_double_float<float>, boost::multiprecision::et_off>>();
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result_is_ok &= test_arithmetic_cpp_double_float::test_arithmetic<boost::multiprecision::number<boost::multiprecision::backends::cpp_double_float<double>, boost::multiprecision::et_off>>();
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result_is_ok &= test_arithmetic_cpp_double_float::test_arithmetic<boost::multiprecision::number<boost::multiprecision::backends::cpp_double_float<long double>, boost::multiprecision::et_off>>();
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// uncomment to check if tests themselves are correct
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//result_is_ok &= test_arithmetic_cpp_double_float::test_arithmetic<float>();
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//result_is_ok &= test_arithmetic_cpp_double_float::test_arithmetic<double>();
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//result_is_ok &= test_arithmetic_cpp_double_float::test_arithmetic<long double>();
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#ifdef BOOST_MATH_USE_FLOAT128
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//result_is_ok &= test_arithmetic_cpp_double_float::test_arithmetic<boost::multiprecision::number<boost::multiprecision::backends::cpp_double_float<boost::multiprecision::float128>, boost::multiprecision::et_off>>();
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//result_is_ok &= test_arithmetic_cpp_double_float::test_arithmetic<boost::multiprecision::float128>();
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#endif
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result_is_ok &= test_arithmetic_cpp_double_float::test_arithmetic<boost::multiprecision::backends::cpp_double_float<float> >();
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result_is_ok &= test_arithmetic_cpp_double_float::test_arithmetic<boost::multiprecision::backends::cpp_double_float<double> >();
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result_is_ok &= test_arithmetic_cpp_double_float::test_arithmetic<boost::multiprecision::backends::cpp_double_float<long double> >();
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#ifdef BOOST_MATH_USE_FLOAT128
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result_is_ok &= test_arithmetic_cpp_double_float::test_arithmetic<boost::multiprecision::backends::cpp_double_float<boost::multiprecision::float128> >();
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#endif
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return (result_is_ok ? 0 : -1);
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