Function from_json

Source/Utils/json.hpp:3426–3433

    {
        template<typename BasicJsonType>
        void from_json(const BasicJsonType& j, typename std::nullptr_t& n)
        {
            if (JSON_HEDLEY_UNLIKELY(!j.is_null()))
            {
                JSON_THROW(type_error::create(302, "type must be null, but is " + std::string(j.type_name())));
            }
            n = nullptr;
        }

        // overloads for basic_json template parameters
        template < typename BasicJsonType, typename ArithmeticType,