| 1 | // Boost.Geometry (aka GGL, Generic Geometry Library) |
|---|
| 2 | |
|---|
| 3 | // Copyright (c) 2007-2012 Barend Gehrels, Amsterdam, the Netherlands. |
|---|
| 4 | // Copyright (c) 2008-2012 Bruno Lalande, Paris, France. |
|---|
| 5 | // Copyright (c) 2009-2012 Mateusz Loskot, London, UK. |
|---|
| 6 | |
|---|
| 7 | // Parts of Boost.Geometry are redesigned from Geodan's Geographic Library |
|---|
| 8 | // (geolib/GGL), copyright (c) 1995-2010 Geodan, Amsterdam, the Netherlands. |
|---|
| 9 | |
|---|
| 10 | // Use, modification and distribution is subject to the Boost Software License, |
|---|
| 11 | // Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at |
|---|
| 12 | // http://www.boost.org/LICENSE_1_0.txt) |
|---|
| 13 | |
|---|
| 14 | #ifndef BOOST_GEOMETRY_VIEWS_IDENTITY_VIEW_HPP |
|---|
| 15 | #define BOOST_GEOMETRY_VIEWS_IDENTITY_VIEW_HPP |
|---|
| 16 | |
|---|
| 17 | |
|---|
| 18 | #include <boost/range.hpp> |
|---|
| 19 | |
|---|
| 20 | |
|---|
| 21 | namespace boost { namespace geometry |
|---|
| 22 | { |
|---|
| 23 | |
|---|
| 24 | // Silence warning C4512: assignment operator could not be generated |
|---|
| 25 | #if defined(_MSC_VER) |
|---|
| 26 | #pragma warning(push) |
|---|
| 27 | #pragma warning(disable : 4512) |
|---|
| 28 | #endif |
|---|
| 29 | |
|---|
| 30 | /*! |
|---|
| 31 | \brief View on a range, not modifying anything |
|---|
| 32 | \tparam Range original range |
|---|
| 33 | \ingroup views |
|---|
| 34 | */ |
|---|
| 35 | template <typename Range> |
|---|
| 36 | struct identity_view |
|---|
| 37 | { |
|---|
| 38 | typedef typename boost::range_iterator<Range const>::type const_iterator; |
|---|
| 39 | typedef typename boost::range_iterator<Range>::type iterator; |
|---|
| 40 | |
|---|
| 41 | explicit inline identity_view(Range& r) |
|---|
| 42 | : m_range(r) |
|---|
| 43 | {} |
|---|
| 44 | |
|---|
| 45 | inline const_iterator begin() const { return boost::begin(m_range); } |
|---|
| 46 | inline const_iterator end() const { return boost::end(m_range); } |
|---|
| 47 | |
|---|
| 48 | inline iterator begin() { return boost::begin(m_range); } |
|---|
| 49 | inline iterator end() { return boost::end(m_range); } |
|---|
| 50 | private : |
|---|
| 51 | Range& m_range; |
|---|
| 52 | }; |
|---|
| 53 | |
|---|
| 54 | #if defined(_MSC_VER) |
|---|
| 55 | #pragma warning(pop) |
|---|
| 56 | #endif |
|---|
| 57 | |
|---|
| 58 | }} // namespace boost::geometry |
|---|
| 59 | |
|---|
| 60 | |
|---|
| 61 | #endif // BOOST_GEOMETRY_VIEWS_IDENTITY_VIEW_HPP |
|---|
| 62 | |
|---|
