Hello all. I have about 8 million 32 bit integers that I need to sort (by the number of ones in the binary representation of the integer) I am wondering what the fastest sort is? Merge? Quicksort? Fast Quicksort? Radix? I am storing my values in my data structure contained within a vector. So I know I will need to manipulate the sort function around a bit. I have already overridden all the needed operators. If anyone can give me suggestions I would appreciate it. Writing a Quine-McCluskey program is more difficult that I would have ever thought. -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics