Mark H Weaver writes:
> Mark H Weaver writes:
>
>> Here's the format of fixrats on 64-bit systems:
…
> This allows for an elegant packing operation:
>
> if (SCM_I_INUMP (numerator) && SCM_I_INUMP (denominator))
> {
> union { double f; uint64_t u; } u;
> u.f = SCM_I_INUM (num
On Sat, 08 Jun 2019 10:07:45 +0200
Arne Babenhauserheide wrote:
[snip]
> Wow, I didn’t know that you could do that.
>
> However: "The details of that allocation are implementation-defined, and
> it's undefined behavior to read from the member of the union that wasn't
> most recently written." htt
Chris Vine writes:
> On Sat, 08 Jun 2019 10:07:45 +0200
> Arne Babenhauserheide wrote:
> [snip]
>> Wow, I didn’t know that you could do that.
>>
>> However: "The details of that allocation are implementation-defined, and
>> it's undefined behavior to read from the member of the union that wasn
On Sat, 08 Jun 2019 11:46:10 +0200
Arne Babenhauserheide wrote:
> Chris Vine writes:
> > On Sat, 08 Jun 2019 10:07:45 +0200
> > Arne Babenhauserheide wrote:
> > [snip]
> >> Wow, I didn’t know that you could do that.
> >>
> >> However: "The details of that allocation are implementation-defined,
> On 8 Jun 2019, at 11:08, Chris Vine wrote:
>
> On Sat, 08 Jun 2019 10:07:45 +0200
> Arne Babenhauserheide wrote:
> [snip]
>> Wow, I didn’t know that you could do that.
>>
>> However: "The details of that allocation are implementation-defined, and
>> it's undefined behavior to read from the
