Re: C++ PATCH: Disallow floating-point literals in integral-constant expressions

[Mike Stump <mrs at apple dot com>]

On Jan 31, 2005, at 5:02 PM, Mark Mitchell wrote:
> The standard says that floating-point literals are only allowed in
> integral constant expressions if they are immediately cast to an
> integral or enumeration type.  When I implemented checks for integral
> constant-expressions, I failed to check this case.  Remedied with the
> attached patch.

If users have this in their code, then this can be seen as a removal of 
a feature by them.  In that case, we should warn about it for a 
release, then make it an error, or put it under -fpermissive.

It'll take us around 3 months to notice if this is so used.  I'm hoping 
that other people make just know, or can run a world build against 
their favorite large source base (100+ M lines).