113 lines
2.9 KiB
C++
113 lines
2.9 KiB
C++
//This file is part of Bertini 2.
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//
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//test/generating/mpfr_float.cpp is free software: you can redistribute it and/or modify
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//it under the terms of the GNU General Public License as published by
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//the Free Software Foundation, either version 3 of the License, or
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//(at your option) any later version.
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//
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//test/generating/mpfr_float.cpp is distributed in the hope that it will be useful,
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//but WITHOUT ANY WARRANTY; without even the implied warranty of
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//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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//GNU General Public License for more details.
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//
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//You should have received a copy of the GNU General Public License
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//along with test/generating/mpfr_float.cpp. If not, see <http://www.gnu.org/licenses/>.
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//
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// Copyright(C) 2015 - 2017 by Bertini2 Development Team
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//
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// See <http://www.gnu.org/licenses/> for a copy of the license,
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// as well as COPYING. Bertini2 is provided with permitted
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// additional terms in the b2/licenses/ directory.
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/**
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\file test/generating/mpfr_float.cpp Tests the generating of text from mpfr_float's.
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*/
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#include "bertini2/io/generators.hpp"
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#include "bertini2/io/parsing/number_parsers.hpp"
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#include <boost/test/unit_test.hpp>
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using mpfr_float = bertini::mpfr_float;
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BOOST_AUTO_TEST_SUITE(mpfr_float_generating)
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BOOST_AUTO_TEST_SUITE(round_trip)
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BOOST_AUTO_TEST_CASE(zero)
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{
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bertini::DefaultPrecision(30);
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mpfr_float z(0);
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std::string result;
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std::back_insert_iterator<std::string> sink(result);
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BOOST_CHECK(bertini::generators::Classic::generate(sink, z));
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mpfr_float rt;
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BOOST_CHECK(bertini::parsing::classic::parse(result.begin(), result.end(), rt));
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BOOST_CHECK_EQUAL(rt,z);
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}
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BOOST_AUTO_TEST_CASE(one)
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{
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bertini::DefaultPrecision(30);
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mpfr_float z(1);
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std::string result;
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std::back_insert_iterator<std::string> sink(result);
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BOOST_CHECK(bertini::generators::Classic::generate(sink, z));
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mpfr_float rt;
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BOOST_CHECK(bertini::parsing::classic::parse(result.begin(), result.end(), rt));
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BOOST_CHECK_EQUAL(rt,z);
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}
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BOOST_AUTO_TEST_CASE(sqrt_2)
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{
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bertini::DefaultPrecision(30);
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mpfr_float z = sqrt(mpfr_float(2));
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std::string result;
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std::back_insert_iterator<std::string> sink(result);
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BOOST_CHECK(bertini::generators::Classic::generate(sink, z));
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mpfr_float rt;
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BOOST_CHECK(bertini::parsing::classic::parse(result.begin(), result.end(), rt));
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BOOST_CHECK_EQUAL(rt,z);
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}
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BOOST_AUTO_TEST_CASE(precision)
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{
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bertini::DefaultPrecision(30);
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mpfr_float z = sqrt(mpfr_float(2));
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std::string result;
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std::back_insert_iterator<std::string> sink(result);
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BOOST_CHECK(bertini::generators::Classic::generate(sink, z));
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bertini::DefaultPrecision(20);
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mpfr_float rt;
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BOOST_CHECK(bertini::parsing::classic::parse(result.begin(), result.end(), rt));
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BOOST_CHECK_EQUAL(rt,z);
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BOOST_CHECK(rt.precision()>=30);
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}
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BOOST_AUTO_TEST_SUITE_END()
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BOOST_AUTO_TEST_SUITE_END()
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