[Bug c++/14885] Improper delete/free of local variables undetected

[ndeb at ece dot cmu dot edu]

------- Additional Comments From ndeb at ece dot cmu dot edu  2004-04-08 20:11 -------
(In reply to comment #3) 
> I personally think that a) this problem is so easily detected at run-time 
> that it does not merit much compiler hacking, and  
 
That was one of the suggestions made by Giovanni Bajo so nothing new here. 
 
> b) this is simply too 
> stupid a user error that we have to bother; I'm sure it doesn't happen 
> very often in practice. 
 
My idea of a bug report is not to post the most complicated thousand line code 
to reproduce a bug that can be reproduced with 5 lines. 
   
> The point being is that we could probably detect the case you present, but 
> then people want us to also warn for cases like 
>  
>   void f(char *p) { 
>     char c; 
>     char *x; 
>     if (bar()) 
>      x = &c; 
>     else 
>      x = p; 
>     delete x; 
>   } 
> and that's something that will be much harder to detect in all variations. 
 
Thats exactly why this bug is a real bug. 
 
> I propose we close this PR. 
 
Not sure what "PR" means but whats the logic behind sweeping it under the  
carpet ? 
 
>  
> W. 
 
 

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14885