type_pair.hpp
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type_pair.hpp
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	//===-- rosa/support/type_pair.hpp ------------------------------- C++ --===//
	//
	// The RoSA Framework
	//
	//===----------------------------------------------------------------------===//
	///
	/// \file rosa/support/type_pair.hpp
	///
	/// \author David Juhasz (david.juhasz@tuwien.ac.at)
	///
	/// \date 2017
	///
	/// \brief Facilities for types representing pairs of types.
	///
	/// \note This implementation is based on the \c type_pair implementation of
	/// CAF.
	/// \todo Check license.
	///
	//===----------------------------------------------------------------------===//

	#ifndef ROSA_SUPPORT_TYPE_PAIR_HPP
	#define ROSA_SUPPORT_TYPE_PAIR_HPP

	namespace rosa {

	/// A pair of types.
	///
	/// \tparam F the first type
	/// \tparam S the second type
	template <typename F, typename S> struct TypePair {
	using First = F; ///< The first type.
	using Second = S; ///< The second type.
	};

	/// Turns two types into a \c rosa::TypePair.
	///
	/// Turning two types \c F and \c S into \c rosa::TypePair<F, S> is as simple as
	/// \code
	/// typename ToTypePair<F, S>::Type
	/// \endcode
	///
	/// \tparam F the fist type
	/// \tparam S the second type
	template <typename F, typename S> struct ToTypePair {
	using Type = TypePair<F, S>; ///< The \c rosa::TypePair.
	};

	} // End namespace rosa

	#endif // ROSA_SUPPORT_TYPE_PAIR_HPP