| // 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 fail_heterogeneous_unit.cpp |
| |
| \details |
| make sure that trying to bind a heterogeneous system to a different dimension fails. |
| |
| Output: |
| @verbatim |
| @endverbatim |
| **/ |
| |
| #include <boost/units/pow.hpp> |
| #include <boost/units/quantity.hpp> |
| #include <boost/units/systems/si.hpp> |
| #include <boost/units/systems/cgs.hpp> |
| //#include <boost/units/systems/conversions/convert_cgs_to_si.hpp> |
| //#include <boost/units/systems/conversions/convert_si_to_cgs.hpp> |
| |
| namespace bu = boost::units; |
| |
| template<class System> |
| bu::quantity<bu::unit<bu::energy_dimension, System> > f(bu::quantity<bu::unit<bu::length_dimension, System> > l) { |
| return(static_cast<bu::quantity<bu::unit<bu::energy_dimension, System> > >(f(static_cast<bu::quantity<bu::si::length> >(l)))); |
| } |
| bu::quantity<bu::si::energy> f(bu::quantity<bu::si::length> l) { |
| return(l * l * 2.0 * bu::si::kilograms / bu::pow<2>(bu::si::seconds)); |
| } |
| |
| int main() { |
| |
| f(1.0 * bu::pow<2>(bu::si::meters) / bu::cgs::centimeters); |
| |
| return(0); |
| } |