Re: What is the warning about builtin-function on gcc-4.6.0 ?

["Randy Brukardt" <randy@rrsoftware.com>]

"Robert A Duff" <bobduff@shell01.TheWorld.com> wrote in message 
news:wcc39m5u64w.fsf@shell01.TheWorld.com...
> "Randy Brukardt" <randy@rrsoftware.com> writes:
...
> Sure, EQUAL can raise C_E on invalid values.
> But I don't think it can return True for invalid values
> that are not mathematically equal.  (If it can, I think it's
> a mistake in the REPORT package.)  I'm too lazy to inspect it
> right now.

I did inspect it, and proved to myself that I had no idea what it actually 
does. :-)

I do think the intent was that it returns the equal result, but that isn't 
documented anywhere (although it might be in the super-secret manual --  
nobody reads that, including me. :-)

> Has EQUAL changed since Ada 83 days?  Just curious.

I don't think so. The change log consists of lots of entries "Updated ACATS 
version string to "3.0"". The last substantive change is some functions 
added in June 1995; no changelog entry mentions Equal.

>> I suspect that there are lot of tests that might fail if the rules for 
>> valid
>> values are taken to the limit -- any test that intentionally raises an
>> exception is always at risk for optimization problems (and that is what
>> 13.9.1 is ultimately about).
>
> Yes, and I'll bet an agressive implementation of 11.6 would find some
> wrong ACATS tests.

That of course has happened a lot in the past. Fewer implementors are 
reporting anything these days, which probably only means that there is less 
active implementation.

                                 Randy.