Method write

UnitTests/TestApp/pugixml.cpp:3206–3245

	}

	void write(const char_t* data, size_t length)
	{
		if (bufsize + length > bufcapacity)
		{
			// flush the remaining buffer contents
			flush();

			// handle large chunks
			if (length > bufcapacity)
			{
				if (encoding == get_write_native_encoding())
				{
					// fast path, can just write data chunk
					writer.write(data, length * sizeof(char_t));
					return;
				}

				// need to convert in suitable chunks
				while (length > bufcapacity)
				{
					// get chunk size by selecting such number of characters that are guaranteed to fit into scratch buffer
					// and form a complete codepoint sequence (i.e. discard start of last codepoint if necessary)
					size_t chunk_size = get_valid_length(data, bufcapacity);

					// convert chunk and write
					flush(data, chunk_size);

					// iterate
					data += chunk_size;
					length -= chunk_size;
				}

				// small tail is copied below
				bufsize = 0;
			}
		}

		memcpy(buffer + bufsize, data, length * sizeof(char_t));
		bufsize += length;
	}

	void write(const char_t* data)
	{