| // 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) |
| |
| #ifndef BOOST_UNITS_DETAIL_ONE_HPP |
| #define BOOST_UNITS_DETAIL_ONE_HPP |
| |
| #include <boost/units/operators.hpp> |
| |
| namespace boost { |
| |
| namespace units { |
| |
| struct one { one() {} }; |
| |
| // workaround for pathscale. |
| inline one make_one() { |
| one result; |
| return(result); |
| } |
| |
| template<class T> |
| struct multiply_typeof_helper<one, T> |
| { |
| typedef T type; |
| }; |
| |
| template<class T> |
| struct multiply_typeof_helper<T, one> |
| { |
| typedef T type; |
| }; |
| |
| template<> |
| struct multiply_typeof_helper<one, one> |
| { |
| typedef one type; |
| }; |
| |
| template<class T> |
| inline T operator*(const one&, const T& t) |
| { |
| return(t); |
| } |
| |
| template<class T> |
| inline T operator*(const T& t, const one&) |
| { |
| return(t); |
| } |
| |
| inline one operator*(const one&, const one&) |
| { |
| one result; |
| return(result); |
| } |
| |
| template<class T> |
| struct divide_typeof_helper<T, one> |
| { |
| typedef T type; |
| }; |
| |
| template<class T> |
| struct divide_typeof_helper<one, T> |
| { |
| typedef T type; |
| }; |
| |
| template<> |
| struct divide_typeof_helper<one, one> |
| { |
| typedef one type; |
| }; |
| |
| template<class T> |
| inline T operator/(const T& t, const one&) |
| { |
| return(t); |
| } |
| |
| template<class T> |
| inline T operator/(const one&, const T& t) |
| { |
| return(1/t); |
| } |
| |
| inline one operator/(const one&, const one&) |
| { |
| one result; |
| return(result); |
| } |
| |
| template<class T> |
| inline bool operator>(const boost::units::one&, const T& t) { |
| return(1 > t); |
| } |
| |
| } // namespace units |
| |
| } // namespace boost |
| |
| #endif |