std.math performance (SSE vs. real)

[H. S. Teoh via Digitalmars-d]

On Fri, Jun 27, 2014 at 02:09:59AM +0000, Tofu Ninja via Digitalmars-d wrote:
> On Friday, 27 June 2014 at 01:31:17 UTC, David Nadlinger wrote:
[...]
> >Because of this, I propose to add float and double overloads (at the
> >very least the double ones) for all of the commonly used functions in
> >std.math.  This is unlikely to break much code, but:
> > a) Somebody could rely on the fact that the calls effectively widen
> > the calculation to 80 bits on x86 when using type deduction.
> > b) Additional overloads make e.g. "&floor" ambiguous without
> > context, of course.
> >
> >What do you think?
[...]
> I honestly alway thought that it was a little odd that it forced
> conversion to real. Personally I support this. It would also make
> generic code that calls math functions more simple as it wouldn't
> require casts back.

I support this too.


T

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