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- //
- // Copyright 2005-2007 Adobe Systems Incorporated
- //
- // 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_DYNAMIC_IMAGE_APPLY_OPERATION_HPP
- #define BOOST_GIL_EXTENSION_DYNAMIC_IMAGE_APPLY_OPERATION_HPP
- #include <boost/gil/detail/mp11.hpp>
- #include <boost/variant/apply_visitor.hpp>
- #ifdef BOOST_GIL_DOXYGEN_ONLY
- #undef BOOST_GIL_REDUCE_CODE_BLOAT
- #endif
- // Implements apply_operation for variants.
- // Optionally performs type reduction.
- #ifdef BOOST_GIL_REDUCE_CODE_BLOAT
- #include <boost/gil/extension/dynamic_image/reduce.hpp>
- #else
- namespace boost { namespace gil {
- /// \ingroup Variant
- /// \brief Invokes a generic mutable operation (represented as a unary function object) on a variant
- template <typename Types, typename UnaryOp>
- BOOST_FORCEINLINE
- auto apply_operation(variant<Types>& arg, UnaryOp op)
- #if defined(BOOST_NO_CXX14_DECLTYPE_AUTO) || defined(BOOST_NO_CXX11_DECLTYPE_N3276)
- -> typename UnaryOp::result_type
- #endif
- {
- return apply_visitor(op, arg);
- }
- /// \ingroup Variant
- /// \brief Invokes a generic constant operation (represented as a unary function object) on a variant
- template <typename Types, typename UnaryOp>
- BOOST_FORCEINLINE
- auto apply_operation(variant<Types> const& arg, UnaryOp op)
- #if defined(BOOST_NO_CXX14_DECLTYPE_AUTO) || defined(BOOST_NO_CXX11_DECLTYPE_N3276)
- -> typename UnaryOp::result_type
- #endif
- {
- return apply_visitor(op, arg);
- }
- /// \ingroup Variant
- /// \brief Invokes a generic constant operation (represented as a binary function object) on two variants
- template <typename Types1, typename Types2, typename BinaryOp>
- BOOST_FORCEINLINE
- auto apply_operation(
- variant<Types1> const& arg1,
- variant<Types2> const& arg2,
- BinaryOp op)
- #if defined(BOOST_NO_CXX14_DECLTYPE_AUTO) || defined(BOOST_NO_CXX11_DECLTYPE_N3276)
- -> typename BinaryOp::result_type
- #endif
- {
- return apply_visitor(op, arg1, arg2);
- }
- }} // namespace boost::gil
- #endif // defined(BOOST_GIL_REDUCE_CODE_BLOAT)
- #endif
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