Re: Gnat/Windows float point Q

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

tmoran@acm.org wrote in message ...
>>> What does it mean when float'image(x) = " 47.720649 0.E+05" ?
>> Check X'Valid if the data comes from some route like
Unchecked_Conversion.
>In this case X comes from Ada.Numerics.Complex_Types.Abs(Y)
>and Y came from Z**2, so it might well overflow.
Float'Machine_Overflows
>is False, so I can't expect an exception, but is an overflowed value
>on Gnat/Windows something that is always False in a compare, and
>generates garbage for float'image?

I'd expect the result of such an operation to be either +infinity
or -infinity. Those compare as you expect, and probably raise
Constraint_Error when stored (if they didn't do that, the compiler would
be violating the rule about math always returning the correct result or
raising an exception).

             Randy.