Re: Exceptions in GNAT

[David Rasmussen <pinkfloydhomer@yahoo.com>]

Preben Randhol wrote:
> On Sun, 02 Jun 2002 13:01:21 +0200, David Rasmussen wrote:
> 
>>I am learning Ada, and in one exercise I am told to find out how large 
>>and integer I can use on my system, before it overflows. The exercise 
>>just tells me to add two larger and larger numbers and see when an 
>>exception occurs. I have just compiled my program with gnatmake with no 
>>options, and I am using gcc 3.1 . When the numbers get large enough, the 
>>result is just a negative number because of wrap-around. Shouldn't I get 
>>an exception, unless I turn it off? How do I compile for with most 
>>checks for debug builds, and how do I compile with everything turned off 
>>for performance intensive release builds?
> 
> 
> First you made a very good choice with Ada :-) 
> 

I think so too :)

> I would recommend that you use the gnat 3.14p compiler instead. The
> reason is that the gcc 3.1 is very fresh and the compiler is reported to

OK, I have both of them installed.

> have some problems. So as you now learn Ada I think you can get
> seriously confused if you stumble over these bugs. At least use both and
> if you see a difference you can report it.
>

I will try it.

> Which platform do you use?
> 

Linux. More precisely, Debian.

/David