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Socoder -> Off Topic -> X-- vs X>0 |
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| Tue, 17 Jan 2012, 12:35 | |
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Afr0 |
Is while(x--) in C equal to while(x > 0) in C#?
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| Tue, 17 Jan 2012, 12:35 | |
HoboBen
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Only if x is positive/unsigned. If x starts at -1, x-- is true (because -2 is true, as it is non-zero). If you can guarantee x is never negative, then yes. Aside: I can never remember the order in which x-- is done; does it return the decremented value, or the value before it was decremented? In which case, if x is initially 0 it may have a different effect. It's best to be explicit with the conditional you suggested. -=-=- blog | work | code | more code |
| Tue, 17 Jan 2012, 13:11 | |
Afr0
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I ended up porting it (and all other implicit boolean statements) as such: -=-=- Afr0 Games Project Dollhouse on Github - Please fork!
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| Tue, 17 Jan 2012, 16:13 | |
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CodersRule |
HoboBen  Aside: I can never remember the order in which x-- is done; does it return the decremented value, or the value before it was decremented? I don't remember which language this was in, but if I remember correctly... x-- returns the value, THEN decrements it. --x decrements the value, THEN returns it.
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| Tue, 17 Jan 2012, 18:44 | |
Evil Roy Ferguso
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Well, that's not entirely an accurate conversion. If x starts at 0, will not execute, but WILL execute once. Convert.ToBoolean on ints isn't really "idiomatic" C#; I'd suggest just going with the following if there's no better looping construct: |
| Tue, 17 Jan 2012, 23:46 | |
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Afr0 |
Thanks!
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