Re: Inline assembler fallback for _FPU_SETCW() missing in MINGW libraries (issue 577450043 by address@hidden)

[Jonas Hahnfeld]

Am Dienstag, den 04.02.2020, 11:08 -0500 schrieb Dan Eble:
> On Feb 4, 2020, at 11:02, Jonas Hahnfeld <
> address@hidden
> > wrote:
> > > That would be my impulse as well.  It is not like this code appears to
> > > have notable drawbacks for the unafflicted platforms.
> > 
> > Except for very funny overflows and negative signs if the value is too
> > large to fit into I64 ;-P
> > 
> > unsigned long long a = 0xC0000000;
> > signed long long b = a;
> > printf("%d\n", b);
> > -> -1073741824
> 
> That's already an ingredient of this recipe.
> 
>    class Rational
>    {
>      ...
>      U64 num_, den_;
>      ...
>      I64 numerator () const { return sign_ * num_; }
> 
> Yum!

Oh wow... I withdraw all my objections, it's already broken if we ever
reach that case.

Jonas

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