Integral overflow, Order relations

[Sean Kelly]

bearophile wrote:
> I have used some C in the past, so I really like that D puts some efforts in avoiding some common bugs, like disallowing:
> 
> for(i= 0;i<10;i++);
> while(n = func(x)) {}
> 
> I have read that in complex C/C++ programs up to 30% of all bugs are caused by integer overflow, so I think D must help the programmer avoid some simple integer bugs too, like:
> 
> writefln(-6 >= "abc".length); // Prints: true

There was some discussion about restricting implicit conversions in 
expressions a while back.  At the time, I thought the changes were 
imminent, but they appear to have been forgotten in favor of other 
things (the new const features, most likely).  So in short, I think 
'someday' D will prevent this kind of error from occurring.


Sean