| ??? 10/04/11 16:51 Read: times Msg Score: +2 +2 Good Answer/Helpful |
#184027 - WIthout Static In This Case Responding to: ???'s previous message |
Without the static the subroutine performance will probably go way way down on some platforms. For those platforms that allocate non-static local variables on a stack the initializer will cause there to be a block copy to initialize the local table every time the subroutine is invoked. This would be different for some 8051 type compilers such as Keil that do not allocate locals to a stack and may very well optimize the run time code to be the equivalent of what you get with the static attribute.
Michael Karas |
| Topic | Author | Date |
| Another static question... | 01/01/70 00:00 | |
| WIthout Static In This Case | 01/01/70 00:00 | |
| Thank you | 01/01/70 00:00 | |
| It is worse than that | 01/01/70 00:00 | |
| could add 'const' | 01/01/70 00:00 | |
| That's the key! | 01/01/70 00:00 | |
| Thanks Neil | 01/01/70 00:00 | |
| True - but not quite the point here | 01/01/70 00:00 | |
| isn't it explained in the book itself? | 01/01/70 00:00 | |
| Yes, it is | 01/01/70 00:00 | |
| Yes, but... | 01/01/70 00:00 | |
| If the pupil does not understand... | 01/01/70 00:00 | |
| In this instance... | 01/01/70 00:00 | |
That is why the call it learning. | 01/01/70 00:00 | |
| isn't this just another example of .... | 01/01/70 00:00 | |
| Information-hiding | 01/01/70 00:00 | |
| not arguing that part | 01/01/70 00:00 | |
| Not just protection. Also better overview (and reuse) | 01/01/70 00:00 |