On Tue, 12 Aug 2003 16:54:05 BST, William Gallafent said: > Er, consider the case of count == 1. Fenceposts can be dangerous things. Amen, given the original code and the first attempt to fix it. I was actually trolling for "accidentally correct" versus "intentionally correct". /Valdis (who has posted "convince me the code is right THIS time" waay too many times on waaay too many lists already today - including one count-the-on-bits scheme that only worked for an all-zeros input.. ;)