123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384 |
- // Boost.Units - A C++ library for zero-overhead dimensional analysis and
- // unit/quantity manipulation and conversion
- //
- // Copyright (C) 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 test_custom_unit.cpp
- \details
- Make sure that a minimal + - * / unit class is fully functional.
- Output:
- @verbatim
- @endverbatim
- **/
- #include <boost/units/quantity.hpp>
- #include <boost/test/minimal.hpp>
- namespace bu = boost::units;
- template<int Mass, int Length, int Time>
- struct simple_unit {};
- BOOST_TYPEOF_REGISTER_TEMPLATE(simple_unit, (int)(int)(int))
- template<int Mass, int Length, int Time>
- simple_unit<Mass, Length, Time> operator+(const simple_unit<Mass, Length, Time>&,
- const simple_unit<Mass, Length, Time>&)
- {
- return simple_unit<Mass, Length, Time>();
- }
- template<int Mass, int Length, int Time>
- simple_unit<Mass, Length, Time> operator-(const simple_unit<Mass, Length, Time>&,
- const simple_unit<Mass, Length, Time>&)
- {
- return simple_unit<Mass, Length, Time>();
- }
- template<int Mass1, int Length1, int Time1, int Mass2, int Length2, int Time2>
- simple_unit<Mass1 + Mass2, Length1 + Length2, Time1 + Time2>
- operator*(const simple_unit<Mass1, Length1, Time1>&,
- const simple_unit<Mass2, Length2, Time2>&)
- {
- return simple_unit<Mass1 + Mass2, Length1 + Length2, Time1 + Time2>();
- }
- template<int Mass1, int Length1, int Time1, int Mass2, int Length2, int Time2>
- simple_unit<Mass1 - Mass2, Length1 - Length2, Time1 - Time2>
- operator/(const simple_unit<Mass1, Length1, Time1>&,
- const simple_unit<Mass2, Length2, Time2>&)
- {
- return simple_unit<Mass1 - Mass2, Length1 - Length2, Time1 - Time2>();
- }
- int test_main(int,char *[])
- {
- bu::quantity<simple_unit<1, 0, 0> > mass = bu::quantity<simple_unit<1, 0, 0> >::from_value(2);
- bu::quantity<simple_unit<0, 1, 0> > length = bu::quantity<simple_unit<0, 1, 0> >::from_value(4);
- bu::quantity<simple_unit<1, 1, 0> > ml = mass * length;
- bu::quantity<simple_unit<1, -1, 0> > m_per_l = mass/length;
- BOOST_CHECK(ml.value() == 8);
- BOOST_CHECK(m_per_l.value() == 0.5);
- mass += mass;
- BOOST_CHECK(mass.value() == 4);
- length -= length;
- BOOST_CHECK(length.value() == 0);
- return 0;
- }
|