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_UNITS_FWD_HPP
12#define BOOST_UNITS_UNITS_FWD_HPP
13
14///
15/// \file
16/// \brief Forward declarations of library components.
17/// \details Forward declarations of units library - dimensions, systems, quantity and string components.
18///
19
20#ifndef BOOST_UNITS_DOXYGEN
21
22#include <string>
23
24namespace boost {
25
26namespace units {
27
28template<typename T,typename V> struct dim;
29template<typename T> struct is_dim;
30
31struct dimensionless_type;
32template<class Item,class Next> struct list;
33template<typename Seq> struct make_dimension_list;
34
35template<class T> struct is_dimensionless;
36template<class S1,class S2> struct is_implicitly_convertible;
37template<class T> struct get_dimension;
38template<class T> struct get_system;
39
40template<class Y> class absolute;
41
42template<class Dim,class System, class Enable=void> class unit;
43
44template<long Base, class Exponent> struct scale;
45
46template<class BaseUnitTag> struct base_unit_info;
47template<class System> struct dimensionless_unit;
48template<class T> struct is_unit;
49template<class T,class Dim> struct is_unit_of_dimension;
50template<class T,class System> struct is_unit_of_system;
51
52template<class Unit,class Y = double> class quantity;
53
54template<class System,class Y> struct dimensionless_quantity;
55template<class T> struct is_quantity;
56template<class T,class Dim> struct is_quantity_of_dimension;
57template<class T,class System> struct is_quantity_of_system;
58
59template<class From,class To> struct conversion_helper;
60
61template<class T> std::string to_string(const T&);
62template<class T> std::string name_string(const T&);
63template<class T> std::string symbol_string(const T&);
64template<class T> std::string raw_string(const T&);
65template<class T> std::string typename_string(const T&);
66
67} // namespace units
68
69} // namespace boost
70
71#endif
72
73#endif // BOOST_UNITS_UNITS_FWD_HPP
74

source code of boost/libs/units/include/boost/units/units_fwd.hpp