Method append

Tools/EditorFramework/pugixml.cpp:7585–7606

	}

	void append(const xpath_node* begin_, const xpath_node* end_, xpath_allocator* alloc)
	{
		size_t size_ = static_cast<size_t>(_end - _begin);
		size_t capacity = static_cast<size_t>(_eos - _begin);
		size_t count = static_cast<size_t>(end_ - begin_);

		if (size_ + count > capacity)
		{
			// reallocate the old array or allocate a new one
			xpath_node* data = static_cast<xpath_node*>(
				alloc->reallocate(_begin, capacity * sizeof(xpath_node), (size_ + count) * sizeof(xpath_node)));
			assert(data);

			// finalize
			_begin = data;
			_end = data + size_;
			_eos = data + size_ + count;
		}

		memcpy(_end, begin_, count * sizeof(xpath_node));
		_end += count;
	}

	void sort_do()
	{