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Re: V3 PATCH: numeric_limits<> support, fix PR/3865
On Tue, Sep 03, 2002 at 03:01:34PM +0200, Gabriel Dos Reis wrote:
> What happens for 1.0f/0.0f on systems that do not have infinity?
z.c:1: error: initializer element is not constant
:-(
> Good. Does the compiler does that no matter how the optimization
> level is?
Yes, but apparently that does us no good because of the above.
> That is fine by me. I just have to point out that C and C++ don't
> follow the same standards: while C seems to promote its own modified
> version of IEEE-754, C++ follows LIA-1. The immediate consequence is
> that we have to define consistent numeric_limits<> that reflect the
> implementation characteristics on all the supported plateform, not
> just on IEEE-754 plateforms.
I am not familiar with the specifics of LIA-1, so I do not at
the moment have an opinion on what should be done.
> Great! I vote for it. Is there anything I can do (apart from changing
> the two lines)?
Dunno yet. I believe I've got the float.h change finished;
I'll post the patch for it in a moment.
r~