Function create

Source/Utils/json.hpp:17400–17418

        /// @}

    private:

        /// helper for exception-safe object creation
        template<typename T, typename... Args>
        JSON_HEDLEY_RETURNS_NON_NULL
            static T* create(Args&& ... args)
        {
            AllocatorType<T> alloc;
            using AllocatorTraits = std::allocator_traits<AllocatorType<T>>;

            auto deleter = [&](T* object)
            {
                AllocatorTraits::deallocate(alloc, object, 1);
            };
            std::unique_ptr<T, decltype(deleter)> object(AllocatorTraits::allocate(alloc, 1), deleter);
            AllocatorTraits::construct(alloc, object.get(), std::forward<Args>(args)...);
            JSON_ASSERT(object != nullptr);
            return object.release();
        }

        ////////////////////////
        // JSON value storage //