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// Boost.Units - A C++ library for zero-overhead dimensional analysis and
// unit/quantity manipulation and conversion
//
// Copyright (C) 2003-2009 Matthias Christian Schabel
// Copyright (C) 2007-2009 Steven Watanabe
//
// Distributed under the Boost Software License, Version 1.0. (See
// accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
/**
\file
\brief test_constants.cpp
\details
Test all combinations of operators with the constants.
**/
#include <boost/units/systems/detail/constants.hpp>
#include <boost/units/quantity.hpp>
#include <boost/units/pow.hpp>
#include <boost/units/systems/si/length.hpp>
#include <boost/units/systems/si/time.hpp>
using boost::units::quantity;
using boost::units::si::length;
using boost::units::si::meters;
using boost::units::si::seconds;
using boost::units::static_rational;
using boost::units::pow;
using boost::units::root;
BOOST_UNITS_PHYSICAL_CONSTANT(length_constant, quantity<length>, 2.0 * meters, 0.5 * meters);
template<class T>
void check_same(const T&, const T&);
template<class T>
typename T::value_type unwrap(const boost::units::constant<T>&);
template<class T>
T unwrap(const T&);
#define BOOST_UNITS_CHECK_RESULT(arg1, op, arg2) check_same((arg1) op (arg2), unwrap(arg1) op unwrap(arg2));
void test_add() {
BOOST_UNITS_CHECK_RESULT(length_constant, +, length_constant);
BOOST_UNITS_CHECK_RESULT(length_constant, +, 1.0 * meters);
BOOST_UNITS_CHECK_RESULT(1.0* meters, +, length_constant);
}
void test_subtract() {
BOOST_UNITS_CHECK_RESULT(length_constant, -, length_constant);
BOOST_UNITS_CHECK_RESULT(length_constant, -, 1.0 * meters);
BOOST_UNITS_CHECK_RESULT(1.0* meters, -, length_constant);
}
void test_multiply() {
BOOST_UNITS_CHECK_RESULT(length_constant, *, length_constant);
BOOST_UNITS_CHECK_RESULT(length_constant, *, 1.0 * seconds);
BOOST_UNITS_CHECK_RESULT(1.0 * seconds, *, length_constant);
BOOST_UNITS_CHECK_RESULT(length_constant, *, 1.0);
BOOST_UNITS_CHECK_RESULT(1.0, *, length_constant);
BOOST_UNITS_CHECK_RESULT(length_constant, *, seconds);
BOOST_UNITS_CHECK_RESULT(seconds, *, length_constant);
}
void test_divide() {
BOOST_UNITS_CHECK_RESULT(length_constant, /, length_constant);
BOOST_UNITS_CHECK_RESULT(length_constant, /, 1.0 * seconds);
BOOST_UNITS_CHECK_RESULT(1.0 * seconds, /, length_constant);
BOOST_UNITS_CHECK_RESULT(length_constant, /, 1.0);
BOOST_UNITS_CHECK_RESULT(1.0, /, length_constant);
BOOST_UNITS_CHECK_RESULT(length_constant, /, seconds);
BOOST_UNITS_CHECK_RESULT(seconds, /, length_constant);
}
void test_pow() {
check_same(pow<2>(length_constant), pow<2>(unwrap(length_constant)));
check_same(root<2>(length_constant), root<2>(unwrap(length_constant)));
check_same(pow<5>(length_constant), pow<5>(unwrap(length_constant)));
check_same(root<5>(length_constant), root<5>(unwrap(length_constant)));
check_same(pow<static_rational<2, 3> >(length_constant), pow<static_rational<2, 3> >(unwrap(length_constant)));
check_same(root<static_rational<2, 3> >(length_constant), root<static_rational<2, 3> >(unwrap(length_constant)));
}
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