OK! I will try it ! Thanks! 2013/8/20 Jonathan Wakely <jwakely.gcc@xxxxxxxxx>: > On 20 August 2013 09:53, Hatt Tom wrote: >> Thanks for reply ! >> >> >> I look into the disassembly instructions ,it show me that the call >> procedure of B::func() own its stack frame ,and its first >> instruction is push %ebp . >> >> so It is not dealed as a inline . > > The compiler is not required to inline functions even if they're > declared as inline. If you don't enable optimisations when compiling > there will be no function inlining. Even with optimisations the > compiler might decide inlining the function would make it slower. > > If you want to force the optimisers to inline it you can use the GNU > attribute always_inline. -- Best Regards!
