[Info-vax] The (now lost) future of Alpha.

[Arne Vajhøj]

On 8/5/2018 7:28 PM, Johnny Billquist wrote:
> On 2018-08-04 00:28, Arne Vajhøj wrote:
>> C, C++ or Ada still provide easy HW access and
>> good real time characteristics, so they will
>> not go away.
> 
> I might strongly disagree with this one. With C++, you have no idea what 
> happens when you do something in the language, making it horrible for 
> figuring out any sort of real time characteristics.
> 
> Think classes, inheritance (even multiple inheritance), exceptions and 
> so on. You create an objects and you have no idea how much code is 
> executed, or how much memory is required. C++ is in general very much 
> depending on lots of memory, and a very dynamic memory management model, 
> which is horrible if we talk embedded and realtime stuff.
> 
> (But yes, I know C++ is being used by some people for those exact 
> environments anyway. I can just feel sorry for when, for some surprising 
> and unknown reason their devices do not work as expected.)

Compared to languages that use GC then C++ is pretty good in this
regard.

:-)

Arne