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97 lines
3.2 KiB
C++
97 lines
3.2 KiB
C++
///////////////////////////////////////////////////////////////
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// Copyright 2012 John Maddock. Distributed under the Boost
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// Software License, Version 1.0. (See accompanying file
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// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_
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//
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#ifdef _MSC_VER
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# define _SCL_SECURE_NO_WARNINGS
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#endif
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#include <boost/detail/lightweight_test.hpp>
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#include <boost/array.hpp>
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#include "test.hpp"
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#include <boost/multiprecision/cpp_int.hpp>
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#include <boost/multiprecision/cpp_bin_float.hpp>
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int main()
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{
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using namespace boost::multiprecision;
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cpp_int i(20);
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cpp_bin_float_50 f50(i);
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BOOST_CHECK_EQUAL(f50, 20);
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f50 = i.convert_to<cpp_bin_float_50>();
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BOOST_CHECK_EQUAL(f50, 20);
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int1024_t i1024(45);
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cpp_bin_float_100 f100(i1024);
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BOOST_CHECK_EQUAL(f100, 45);
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f100 = i1024.convert_to<cpp_bin_float_100>();
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BOOST_CHECK_EQUAL(f100, 45);
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uint1024_t ui1024(55);
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cpp_bin_float_100 f100b(ui1024);
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BOOST_CHECK_EQUAL(f100b, 55);
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f100b = ui1024.convert_to<cpp_bin_float_100>();
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BOOST_CHECK_EQUAL(f100b, 55);
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typedef number<cpp_int_backend<32, 32>, et_off> i32_t;
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i32_t i32(67);
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cpp_bin_float_100 f100c(i32);
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BOOST_CHECK_EQUAL(f100c, 67);
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f100c = i32.convert_to<cpp_bin_float_100>();
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BOOST_CHECK_EQUAL(f100c, 67);
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typedef number<cpp_int_backend<32, 32, unsigned_magnitude>, et_off> ui32_t;
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ui32_t ui32(98);
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cpp_bin_float_100 f100d(ui32);
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BOOST_CHECK_EQUAL(f100d, 98);
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f100d = ui32.convert_to<cpp_bin_float_100>();
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BOOST_CHECK_EQUAL(f100d, 98);
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typedef number<cpp_int_backend<64, 64>, et_off> i64_t;
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i64_t i64(67);
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cpp_bin_float_100 f100e(i64);
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BOOST_CHECK_EQUAL(f100e, 67);
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f100e = i64.convert_to<cpp_bin_float_100>();
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BOOST_CHECK_EQUAL(f100e, 67);
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typedef number<cpp_int_backend<64, 64, unsigned_magnitude>, et_off> ui64_t;
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ui64_t ui64(98);
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cpp_bin_float_100 f100f(ui64);
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BOOST_CHECK_EQUAL(f100f, 98);
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f100f = ui64.convert_to<cpp_bin_float_100>();
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BOOST_CHECK_EQUAL(f100f, 98);
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typedef number<cpp_int_backend<128, 128>, et_off> i128_t;
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i128_t i128(67);
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cpp_bin_float_100 f100g(i128);
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BOOST_CHECK_EQUAL(f100g, 67);
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f100g = i128.convert_to<cpp_bin_float_100>();
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BOOST_CHECK_EQUAL(f100g, 67);
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typedef number<cpp_int_backend<128, 128, unsigned_magnitude>, et_off> ui128_t;
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ui128_t ui128(98);
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cpp_bin_float_100 f100h(ui128);
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BOOST_CHECK_EQUAL(f100h, 98);
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f100h = ui128.convert_to<cpp_bin_float_100>();
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BOOST_CHECK_EQUAL(f100h, 98);
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cpp_bin_float_quad q = (std::numeric_limits<float>::min)();
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BOOST_CHECK_EQUAL(q.convert_to<float>(), (std::numeric_limits<float>::min)());
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q = (std::numeric_limits<float>::max)();
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BOOST_CHECK_EQUAL(q.convert_to<float>(), (std::numeric_limits<float>::max)());
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q = (std::numeric_limits<float>::denorm_min)();
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BOOST_CHECK_EQUAL(q.convert_to<float>(), (std::numeric_limits<float>::denorm_min)());
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// See https://svn.boost.org/trac/boost/ticket/12512:
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boost::multiprecision::number<boost::multiprecision::backends::cpp_bin_float<128, boost::multiprecision::backends::digit_base_2, void, int64_t> > ext_float("1e-646456978");
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BOOST_CHECK_EQUAL(ext_float.convert_to<float>(), 0);
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return boost::report_errors();
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}
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