json/example/path.cpp at develop · boostorg/json · GitHub

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// 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

#include <boost/json.hpp>

using namespace boost::json;

value&

path( value& jv, std::size_t index)

{

array *arr;

if(jv.is_null())

arr = &jv.emplace_array();

else

arr = &jv.as_array();

if(arr->size() <= index)

arr->resize(index + 1);

return (*arr)[index];

}

value&

path( value& jv, string_view key )

{

object* obj;

if(jv.is_null())

obj = &jv.emplace_object();

else

obj = &jv.as_object();

return (*obj)[key];

}

template<class Arg0, class Arg1, class... Args>

value&

path( value& jv, Arg0 const& arg0, Arg1 const& arg1, Args const&... args )

{

return path( path( jv, arg0 ), arg1, args... );

}

int

main(int, char**)

{

value jv;

path( jv, "user:config", "authority", "router", 0, "users" ) = 42;

return EXIT_SUCCESS;

}

json/example/path.cpp at develop · boostorg/json · GitHub

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