49 lines
1011 B
C++
49 lines
1011 B
C++
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//
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// Copyright (c) 2019 Vinnie Falco (vinnie.falco@gmail.com)
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//
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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//
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// Official repository: https://github.com/boostorg/json
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//
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#ifndef BOOST_JSON_VISIT_HPP
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#define BOOST_JSON_VISIT_HPP
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#include <boost/json/detail/config.hpp>
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#include <boost/json/value.hpp>
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#include <type_traits>
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#include <utility>
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BOOST_JSON_NS_BEGIN
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/** Invoke a function object with the contents of a @ref value
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@return The value returned by Visitor.
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@param v The visitation function to invoke
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@param jv The value to visit.
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*/
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/** @{ */
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template<class Visitor>
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auto
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visit(
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Visitor&& v,
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value& jv) -> decltype(
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std::declval<Visitor>()(nullptr));
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template<class Visitor>
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auto
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visit(
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Visitor &&v,
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value const &jv) -> decltype(
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std::declval<Visitor>()(nullptr));
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/** @} */
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BOOST_JSON_NS_END
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#include <boost/json/impl/visit.hpp>
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#endif
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