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Re: Fix libgomp Fortran tests

On Thu, Sep 07, 2006 at 08:20:22PM -0600, Roger Sayle wrote:
> On Thu, 7 Sep 2006, Steve Kargl wrote:
> > The Fortran tried to use the most negative integer value, but
> > this cause an overflow because gfortran creates this value
> > via a unary minus operation.
> Whilst I agree completely that prohibiting the constant -2147483648
> adheres to the letter of the standards, might it not be reasonable
> to support this as a STD_GNU or a STD_LEGACY extension for compatability
> with other compilers (such as previous versions of gfortran and g77)
> that are more forgiving in the constants that they accept.
> I'm curious how many other F90/F95 compilers (dis)allow -2147483648?
> Sorry if this has been discussed previously and just not referenced
> in your post:
> Just a thought,

In my limited sampling of 1 other compiler (NAGWare), I find

laptop:kargl[230] cat > a.f90
integer :: i = -2147483648
print *, i
laptop:kargl[231] f95 -o z a.f90
Error: a.f90, line 1: Integer literal 2147483648 too large for default KIND
Errors in declarations, no further processing for $main$
[f95 error termination]

I have no other data points.


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