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// // Copyright (c) 2019 Vinnie Falco (vinnie.falco@gmail.com) // // 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) // // Official repository: https://github.com/boostorg/json // #ifndef BOOST_JSON_VISIT_HPP #define BOOST_JSON_VISIT_HPP #include <boost/json/detail/config.hpp> #include <boost/json/value.hpp> #include <type_traits> #include <utility> BOOST_JSON_NS_BEGIN /** Invoke a function object with the contents of a @ref value @return The value returned by Visitor. @param v The visitation function to invoke @param jv The value to visit. */ /** @{ */ template<class Visitor> auto visit( Visitor&& v, value& jv) -> decltype( std::declval<Visitor>()(nullptr)); template<class Visitor> auto visit( Visitor &&v, value const &jv) -> decltype( std::declval<Visitor>()(nullptr)); /** @} */ BOOST_JSON_NS_END #include <boost/json/impl/visit.hpp> #endif
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