> > clock() returns an approximation of the CPU time used by the actual > process, > > so while load from other programs is a factor (particularly since it'll > make > > your program wait for IO, etc.) it should do basically what you want. > > Also check out the times(2) facility. It's not ISO C, but it is POSIX and > it has some advantages over clock(3). > > -- > Thanks, what exactly are the advantages? These are sometimes long calculations so the processor will be running for long. Also, is there an example on using times(2) somewhere? A Google search on times(2) example C did not reveal much, but the choice of keywords may not have been apt. (One problem with the name of the language called C is that is just a letter, as opposed to fortran/C++/pascal et al, which is more distinctive. Sorry and thanks for all the help! Best wishes! __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com