projects / ceph.git / blame
| Commit | Line | Data |
|---|---|---|
| 7c673cae FG |
1 | // Boost.Units - A C++ library for zero-overhead dimensional analysis and |
| 2 | // unit/quantity manipulation and conversion | |
| 3 | // | |
| 4 | // Copyright (C) 2003-2008 Matthias Christian Schabel | |
| 5 | // Copyright (C) 2008 Steven Watanabe | |
| 6 | // | |
| 7 | // Distributed under the Boost Software License, Version 1.0. (See | |
| 8 | // accompanying file LICENSE_1_0.txt or copy at | |
| 9 | // http://www.boost.org/LICENSE_1_0.txt) | |
| 10 | ||
| 11 | #ifndef BOOST_UNITS_DETAIL_ONE_HPP | |
| 12 | #define BOOST_UNITS_DETAIL_ONE_HPP | |
| 13 | ||
| 14 | #include <boost/units/operators.hpp> | |
| 15 | ||
| 16 | namespace boost { | |
| 17 | ||
| 18 | namespace units { | |
| 19 | ||
| 20 | struct one { one() {} }; | |
| 21 | ||
| 22 | // workaround for pathscale. | |
| 23 | inline one make_one() { | |
| 24 | one result; | |
| 25 | return(result); | |
| 26 | } | |
| 27 | ||
| 28 | template<class T> | |
| 29 | struct multiply_typeof_helper<one, T> | |
| 30 | { | |
| 31 | typedef T type; | |
| 32 | }; | |
| 33 | ||
| 34 | template<class T> | |
| 35 | struct multiply_typeof_helper<T, one> | |
| 36 | { | |
| 37 | typedef T type; | |
| 38 | }; | |
| 39 | ||
| 40 | template<> | |
| 41 | struct multiply_typeof_helper<one, one> | |
| 42 | { | |
| 43 | typedef one type; | |
| 44 | }; | |
| 45 | ||
| 46 | template<class T> | |
| 47 | inline T operator*(const one&, const T& t) | |
| 48 | { | |
| 49 | return(t); | |
| 50 | } | |
| 51 | ||
| 52 | template<class T> | |
| 53 | inline T operator*(const T& t, const one&) | |
| 54 | { | |
| 55 | return(t); | |
| 56 | } | |
| 57 | ||
| 58 | inline one operator*(const one&, const one&) | |
| 59 | { | |
| 60 | one result; | |
| 61 | return(result); | |
| 62 | } | |
| 63 | ||
| 64 | template<class T> | |
| 65 | struct divide_typeof_helper<T, one> | |
| 66 | { | |
| 67 | typedef T type; | |
| 68 | }; | |
| 69 | ||
| 70 | template<class T> | |
| 71 | struct divide_typeof_helper<one, T> | |
| 72 | { | |
| 73 | typedef T type; | |
| 74 | }; | |
| 75 | ||
| 76 | template<> | |
| 77 | struct divide_typeof_helper<one, one> | |
| 78 | { | |
| 79 | typedef one type; | |
| 80 | }; | |
| 81 | ||
| 82 | template<class T> | |
| 83 | inline T operator/(const T& t, const one&) | |
| 84 | { | |
| 85 | return(t); | |
| 86 | } | |
| 87 | ||
| 88 | template<class T> | |
| 89 | inline T operator/(const one&, const T& t) | |
| 90 | { | |
| 91 | return(1/t); | |
| 92 | } | |
| 93 | ||
| 94 | inline one operator/(const one&, const one&) | |
| 95 | { | |
| 96 | one result; | |
| 97 | return(result); | |
| 98 | } | |
| 99 | ||
| 100 | template<class T> | |
| 101 | inline bool operator>(const boost::units::one&, const T& t) { | |
| 102 | return(1 > t); | |
| 103 | } | |
| 104 | ||
| 105 | template<class T> | |
| 106 | T one_to_double(const T& t) { return t; } | |
| 107 | ||
| 108 | inline double one_to_double(const one&) { return 1.0; } | |
| 109 | ||
| 110 | template<class T> | |
| 111 | struct one_to_double_type { typedef T type; }; | |
| 112 | ||
| 113 | template<> | |
| 114 | struct one_to_double_type<one> { typedef double type; }; | |
| 115 | ||
| 116 | } // namespace units | |
| 117 | ||
| 118 | } // namespace boost | |
| 119 | ||
| 120 | #endif |