[article] Language Design Deal Breakers

[Don]

On Sunday, 26 May 2013 at 18:43:30 UTC, Walter Bright wrote:
> On 5/26/2013 8:43 AM, deadalnix wrote:
>> On Sunday, 26 May 2013 at 14:10:44 UTC, Paulo Pinto wrote:
>>> Yeah, you are right. C and C++ stab themselves only to die a 
>>> few hours later
>>> in a code section totally unrelated or just behave strangely.
>>
>> Ha, I spent the day on an issue like that in D.
>>
>> Stackoverflow on a fiber, that spill on a the stack of another 
>> fiber. When the
>> other fiber unwind its stack enough to get to the trashed 
>> data, SURPRISE !
>>
>> Not really related to null pointer, but clearly a memory 
>> safety issue.
>
> Fibers should be implemented by mapping a 4K page with no 
> access rights at the end of each stack.

We do that in our code. Fibers are virtually unusable without it, 
it is incredibly easy to get a stack overflow, and they are 
horrible to debug.