Boost C++ Libraries

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boost/bind/apply.hpp

#ifndef BOOST_BIND_APPLY_HPP_INCLUDED
#define BOOST_BIND_APPLY_HPP_INCLUDED

//
// apply.hpp
//
// Copyright 2002, 2003, 2024 Peter Dimov
//
// 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)
//

namespace boost
{

template<class R> struct apply
{
    typedef R result_type;

    template<class F, class... A> result_type operator()( F&& f, A&&... a ) const
    {
        return static_cast<F&&>( f )( static_cast<A&&>( a )... );
    }
};

} // namespace boost

#endif // #ifndef BOOST_BIND_APPLY_HPP_INCLUDED