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91 lines
3.2 KiB
C++
91 lines
3.2 KiB
C++
// Boost.Units - A C++ library for zero-overhead dimensional analysis and
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// unit/quantity manipulation and conversion
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//
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// Copyright (C) 2009 Steven Watanabe
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//
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// Distributed under the Boost Software License, Version 1.0. (See
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// accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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/**
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\file
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\brief test_trig.cpp
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\details
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Test trigonometric functions.
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Output:
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@verbatim
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@endverbatim
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**/
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#include <cmath>
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#include <boost/units/cmath.hpp>
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#include <boost/units/io.hpp>
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#include <boost/units/systems/si/plane_angle.hpp>
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#include <boost/units/systems/si/length.hpp>
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#include <boost/units/systems/si/dimensionless.hpp>
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#include <boost/units/systems/angle/degrees.hpp>
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#include "test_close.hpp"
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using boost::units::si::radians;
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using boost::units::si::si_dimensionless;
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using boost::units::degree::degrees;
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BOOST_UNITS_STATIC_CONSTANT(degree_dimensionless, boost::units::degree::dimensionless);
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using boost::units::si::meters;
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BOOST_UNITS_STATIC_CONSTANT(heterogeneous_dimensionless, boost::units::reduce_unit<boost::units::si::dimensionless>::type);
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void test_sin() {
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BOOST_TEST_EQ(boost::units::sin(2.0 * radians), std::sin(2.0) * si_dimensionless);
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BOOST_UNITS_TEST_CLOSE(static_cast<double>(boost::units::sin(15.0 * degrees)), 0.2588, 0.0004);
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}
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void test_cos() {
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BOOST_TEST_EQ(boost::units::cos(2.0 * radians), std::cos(2.0) * si_dimensionless);
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BOOST_UNITS_TEST_CLOSE(static_cast<double>(boost::units::cos(75.0 * degrees)), 0.2588, 0.0004);
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}
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void test_tan() {
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BOOST_TEST_EQ(boost::units::tan(2.0 * radians), std::tan(2.0) * si_dimensionless);
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BOOST_UNITS_TEST_CLOSE(static_cast<double>(boost::units::tan(45.0 * degrees)), 1.0, 0.0001);
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}
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void test_asin() {
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BOOST_TEST_EQ(boost::units::asin(0.2 * si_dimensionless), std::asin(0.2) * radians);
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BOOST_UNITS_TEST_CLOSE(boost::units::asin(0.5 * degree_dimensionless).value(), 30.0, 0.0001);
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BOOST_TEST_EQ(boost::units::asin(0.2 * heterogeneous_dimensionless).value(), std::asin(0.2));
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}
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void test_acos() {
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BOOST_TEST_EQ(boost::units::acos(0.2 * si_dimensionless), std::acos(0.2) * radians);
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BOOST_UNITS_TEST_CLOSE(boost::units::acos(0.5 * degree_dimensionless).value(), 60.0, 0.0001);
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BOOST_TEST_EQ(boost::units::acos(0.2 * heterogeneous_dimensionless).value(), std::acos(0.2));
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}
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void test_atan() {
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BOOST_TEST_EQ(boost::units::atan(0.2 * si_dimensionless), std::atan(0.2) * radians);
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BOOST_UNITS_TEST_CLOSE(boost::units::atan(1.0 * degree_dimensionless).value(), 45.0, 0.0001);
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BOOST_TEST_EQ(boost::units::atan(0.2 * heterogeneous_dimensionless).value(), std::atan(0.2));
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}
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void test_atan2() {
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BOOST_TEST_EQ(boost::units::atan2(0.2 * si_dimensionless, 0.3 * si_dimensionless), std::atan2(0.2, 0.3) * radians);
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BOOST_TEST_EQ(boost::units::atan2(0.2 * meters, 0.3 * meters), std::atan2(0.2, 0.3) * radians);
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BOOST_UNITS_TEST_CLOSE(boost::units::atan2(0.8660*degree_dimensionless,0.5*degree_dimensionless).value(), 60., 0.0002);
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BOOST_TEST_EQ(boost::units::atan2(0.2 * heterogeneous_dimensionless, 0.3 * heterogeneous_dimensionless).value(), std::atan2(0.2, 0.3));
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}
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int main()
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{
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test_sin();
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test_cos();
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test_tan();
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test_asin();
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test_acos();
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test_atan();
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test_atan2();
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return boost::report_errors();
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}
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