[dmd-internals] Pure CTFE-able std.math

[Daniel Murphy]

I would prefer to see (as either builtins or properties) a way to get/set
the exponent/mantissa/sign of a float.

eg
float x;
x.sign = 1;
assert(x.exp == 123);

Easily ctfeable, no need for casting, no endianness problems.

I expect everything could be implemented from these?


On Mon, Jul 15, 2013 at 8:22 PM, Iain Buclaw <ibuclaw at ubuntu.com> wrote:

> On 15 July 2013 10:46, Iain Buclaw <ibuclaw at ubuntu.com> wrote:
> >
> > Now, the pressing question is, which method do you prefer / would like
> > to see in CTFE first. :o)
> >
>
> Alternatively, we could add BUILTINfloor and BUILTINceil into
> builtins.c, but I'd rather avoid this route if possible. :-)
>
> --
> Iain Buclaw
>
> *(p < e ? p++ : p) = (c & 0x0f) + '0';
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