[EMAIL PROTECTED] wrote: > Peng, > > The space between the ++ and i is fine. Some find ++i more readable, > that is all. > > It is difficult to optimize away the repeated f(n) calls because f() > could have side effects and there is no guarantee it will always return > a constant. If f() always returns a constant, this could potentially be > optimized by interprocedural constant propagation(IPCP)
GCC also offers the __attribute__((pure)) for such functions. _______________________________________________ help-gplusplus mailing list help-gplusplus@gnu.org http://lists.gnu.org/mailman/listinfo/help-gplusplus
