sudhakar govindavajhala <sudhakarg79spam@xxxxxxxxx> writes: > I am wondering why code generated by the same gcc 4.1.2 compiler on > the same source and the same machine generates different codes at > different times. I find this behavior very odd. Could someone please > add me some perspective on this? In gcc 4.1 doing a #include of <iostream.h> causes your object file to include a global constructor. That global constructor would normally be given a name associated with the first global symbol in your object file. Since your object file does not have any global symbols, the constructor is given a randomly chosen name in the hopes of avoiding collisions (the name also includes the name of the file you are compiling). You can see this if you run "readelf -s --wide" on your object files. That randomly chosen name will be different each time the compiler is run (unless of course you use the -frandom-seed option). This works differently in current mainline and the objects files are now consistently identical. Ian
