Menu
Community /Pin to ProfileBookmark
@NogDogNov 02.2007 — #Some tests I ran a while back indicated that the difference was pretty small, with a slight advantage going to if/else. But we're talking about a few microseconds here; so unless you are working on a realtime missile tracking system or such where every microsecond counts, I would opt for whichever method is the most logical and easiest to maintain for a given situation. @NogDogNov 02.2007 — #Sure, a single difference in two programs of a few microseconds probably won't matter much for most things. However, if you're talking about a complex program (let's say something like the Aegis anti-air fire control system that needs to track multiple targets while simultaneously analyzing threat ratings, allocating and controlling defensive missile/gun assets, etc) that may consist of tens of thousands of lines of code, saving a few microseconds each in hundreds or thousands of places in the program code may be important.
But I digress. @NogDogNov 03.2007 — #
Don't think I ever said it was. (Aegis software -- or at least parts of it -- were written CMS-2 back when I was vaguely associated with it. I have no idea what they are using now.) Which is why I originally said that for most purposes worrying about a few microseconds difference between switch or if/else is a non-issue, and was trying to simply make a point that while there [i]are[/i] some situations where such things are important, most of the time for us peons working on typical web sites, code readability/maintainability will be much more important than saving a microsecond or two here or there.
But go ahead and continue to nit-pick, I know how much you enjoy it. :p
Switch or If-else?
Speed-wise, which computes quicker? When I looked it up, it seemed it could go both ways, in some cases a switch statement would be quicker, in other they would be basically the same. I know a switch is faster in c++ but is tha the same in php usually?
Sign in
to post a comment8 Comments(s) ↴
0
@NogDogNov 02.2007 — #0
@NogDogNov 02.2007 — #But I digress.
0
@NogDogNov 03.2007 — #That doesn't sound a very likely candidate for PHP.[/QUOTE]
Don't think I ever said it was. (Aegis software -- or at least parts of it -- were written CMS-2 back when I was vaguely associated with it. I have no idea what they are using now.) Which is why I originally said that for most purposes worrying about a few microseconds difference between switch or if/else is a non-issue, and was trying to simply make a point that while there [i]are[/i] some situations where such things are important, most of the time for us peons working on typical web sites, code readability/maintainability will be much more important than saving a microsecond or two here or there.
But go ahead and continue to nit-pick, I know how much you enjoy it. :p