alt Hacker NewsI really don't see what's supposedly awful about that loop, but if you want to count down to x instead of 0 you just do:
for (size_t i = size - 1; i >= x; i--)Replies
StellarScience • yesterday at 11:07 PM
> I really don't see what's supposedly awful about that loop
Exactly! That's precisely the problem with it.
(Hint: think about your code when size = 0.)
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> I really don't see what's supposedly awful about that loop
The stopping condition is incredibly confusing and non-obvious. Misleading at first glance, in fact. The whole thing is so unidiomatic that I don't think I've even seen it once in my life. It's a better contender for an underhanded C++ code contest than production code.
> but if you want to count down to x instead of 0 you just do i >= x
No you can't. That fails if x == 0. Which perfectly illustrates why using unsigned everywhere isn't so great. And I say this as someone who likes unsigned types and uses them more than average!