gistfile1.txt

while (true)
	{
		if (!fgets(buf, MAX_SIZE, file_read)
			|| ferror(file_read)
			|| feof(file_read))
			break;
		fwrite(buf, sizeof(char), MAX_SIZE, file_write);
	}
	
while (!feof(file_read))
	{
		fgets(buf, MAX_SIZE, file_read)
		fwrite(buf, sizeof(char), MAX_SIZE, file_write);
	}