| // Boost.Units - A C++ library for zero-overhead dimensional analysis and |
| // unit/quantity manipulation and conversion |
| // |
| // Copyright (C) 2003-2008 Matthias Christian Schabel |
| // Copyright (C) 2008 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 unit.cpp |
| |
| \details |
| Test unit algebra. |
| |
| Output: |
| @verbatim |
| |
| //[unit_output |
| L = m |
| L+L = m |
| L-L = m |
| L/L = dimensionless |
| meter*meter = m^2 |
| M*(L/T)*(L/T) = m^2 kg s^-2 |
| M*(L/T)^2 = m^2 kg s^-2 |
| L^3 = m^3 |
| L^(3/2) = m^(3/2) |
| 2vM = kg^(1/2) |
| (3/2)vM = kg^(2/3) |
| //] |
| |
| @endverbatim |
| **/ |
| |
| #include <iostream> |
| |
| #include "test_system.hpp" |
| |
| #include <boost/units/pow.hpp> |
| |
| int main() |
| { |
| using namespace boost::units; |
| using namespace boost::units::test; |
| |
| //[unit_snippet_1 |
| const length L; |
| const mass M; |
| // needs to be namespace-qualified because of global time definition |
| const boost::units::test::time T; |
| const energy E; |
| //] |
| |
| std::cout << "L = " << L << std::endl |
| << "L+L = " << L+L << std::endl |
| << "L-L = " << L-L << std::endl |
| << "L/L = " << L/L << std::endl |
| << "meter*meter = " << meter*meter << std::endl |
| << "M*(L/T)*(L/T) = " << M*(L/T)*(L/T) << std::endl |
| << "M*(L/T)^2 = " << M*pow<2>(L/T) << std::endl |
| << "L^3 = " << pow<3>(L) << std::endl |
| << "L^(3/2) = " << pow<static_rational<3,2> >(L) |
| << std::endl |
| << "2vM = " << root<2>(M) << std::endl |
| << "(3/2)vM = " << root<static_rational<3,2> >(M) |
| << std::endl; |
| |
| return 0; |
| } |
