Typical security issues in C++: why the GC isn't your enemy
Timon Gehr
timon.gehr at gmx.ch
Fri Dec 9 10:54:54 UTC 2022
On 12/9/22 10:43, Dom DiSc wrote:
> On Thursday, 8 December 2022 at 23:30:56 UTC, Timon Gehr wrote:
>>>> A particularly egregious case is the do-while loop:
>>>>
>>>> do{
>>>> int x=4;
>>>> if(condition){
>>>> ...
>>>> x++;
>>>> }
>>>> ...
>>>> }while(x<10); // error
>>>> ```
>>>>
>>>> Just... why? x)
>>>
>>> Because we love to annoy people.
>>>
>>
>> Well, for D specifically, I hope the answer is just that the reason is
>> that C does it this way.
>
> Well, declaring variables within a loop is just awful style, don't do that!
Nonsense.
> And it will also not work with for-loops, but may be somewhat more
> obvious for humans:
>
> for(int i = 0; i < x; ++i) // error: x undeclared
> {
> int x = 10;
> ...
> }
>
>
What is your point? That's a completely different case, you are
accessing `x` before it is even declared.
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