zhipuzi_pay_plugin/include/boost/gil/extension/toolbox/metafunctions/is_similar.hpp

//
// Copyright 2012 Christian Henning, Andreas Pokorny, Lubomir Bourdev
//
// 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_GIL_EXTENSION_TOOLBOX_METAFUNCTIONS_IS_SIMILAR_HPP
#define BOOST_GIL_EXTENSION_TOOLBOX_METAFUNCTIONS_IS_SIMILAR_HPP

#include <boost/gil/channel.hpp>

namespace boost{ namespace gil {

/// is_similar metafunctions
/// \brief Determines if two pixel types are similar.

template< typename A, typename B >
struct is_similar : mpl::false_ {};

template<typename A>
struct is_similar< A, A > : mpl::true_ {};

template<typename B,int I, int S, bool M, int I2>
struct is_similar< packed_channel_reference< B,  I, S, M >
                 , packed_channel_reference< B, I2, S, M >
                 > : mpl::true_ {};

} // namespace gil
} // namespace boost

#endif