On Thu, Aug 31, 2023 at 6:57 AM Ken Matsui wrote:
>
> On Tue, Aug 8, 2023 at 1:19 PM Jonathan Wakely wrote:
> >
> >
> >
> > On Tue, 18 Jul 2023 at 07:25, Ken Matsui via Libstdc++
> > wrote:
> >>
> >> Hi,
> >>
> >> I took a benchmark for this.
> >>
> >>
On Tue, Aug 8, 2023 at 1:19 PM Jonathan Wakely wrote:
>
>
>
> On Tue, 18 Jul 2023 at 07:25, Ken Matsui via Libstdc++
> wrote:
>>
>> Hi,
>>
>> I took a benchmark for this.
>>
>> https://github.com/ken-matsui/gcc-benches/blob/main/is_fundamental-disjunction.md#mon-jul-17-105937-pm-pdt-2023
>>
>>
On Tue, Aug 8, 2023 at 1:14 PM Jonathan Wakely wrote:
>
>
>
> On Tue, 18 Jul 2023 at 07:28, Ken Matsui via Libstdc++
> wrote:
>>
>> I will eventually work on disjunction to somehow optimize, but in the
>> meantime, this might be a better implementation. Of course, my
>> benchmark could be
On Tue, 18 Jul 2023 at 07:25, Ken Matsui via Libstdc++ <
libstd...@gcc.gnu.org> wrote:
> Hi,
>
> I took a benchmark for this.
>
>
> https://github.com/ken-matsui/gcc-benches/blob/main/is_fundamental-disjunction.md#mon-jul-17-105937-pm-pdt-2023
>
> template
> struct is_fundamental
> : public
On Tue, 18 Jul 2023 at 07:28, Ken Matsui via Libstdc++ <
libstd...@gcc.gnu.org> wrote:
> I will eventually work on disjunction to somehow optimize, but in the
> meantime, this might be a better implementation. Of course, my
> benchmark could be wrong.
>
You should use __or_ internally in
It seems rather logical cause std::disjunction is supposed to avoid
instantiations but in case of:
std::disjunction, std::is_null_pointer<_Tp>>
you'll avoid std::is_null_pointer instantiation only for 'void' type and
at the price of instantiating std::disjunction so 2 instantiations at
best
I will eventually work on disjunction to somehow optimize, but in the
meantime, this might be a better implementation. Of course, my
benchmark could be wrong.
On Mon, Jul 17, 2023 at 11:24 PM Ken Matsui wrote:
>
> Hi,
>
> I took a benchmark for this.
>
>
Hi,
I took a benchmark for this.
https://github.com/ken-matsui/gcc-benches/blob/main/is_fundamental-disjunction.md#mon-jul-17-105937-pm-pdt-2023
template
struct is_fundamental
: public std::bool_constant<__is_arithmetic(_Tp)
|| std::is_void<_Tp>::value
On Sun, Jul 16, 2023 at 5:41 AM François Dumont wrote:
>
>
> On 15/07/2023 06:55, Ken Matsui via Libstdc++ wrote:
> > This patch optimizes the performance of the is_fundamental trait by
> > dispatching to the new __is_arithmetic built-in trait.
> >
> > libstdc++-v3/ChangeLog:
> >
> > *
On 15/07/2023 06:55, Ken Matsui via Libstdc++ wrote:
This patch optimizes the performance of the is_fundamental trait by
dispatching to the new __is_arithmetic built-in trait.
libstdc++-v3/ChangeLog:
* include/std/type_traits (is_fundamental_v): Use __is_arithmetic
built-in
Hi,
Here are the benchmarks for this change:
* is_fundamental
https://github.com/ken-matsui/gcc-benches/blob/main/is_fundamental.md#fri-jul-14-091146-pm-pdt-2023
Time: -37.1619%
Peak Memory Usage: -29.4294%
Total Memory Usage: -29.4783%
* is_fundamental_v
This patch optimizes the performance of the is_fundamental trait by
dispatching to the new __is_arithmetic built-in trait.
libstdc++-v3/ChangeLog:
* include/std/type_traits (is_fundamental_v): Use __is_arithmetic
built-in trait.
(is_fundamental): Likewise. Optimize the
12 matches
Mail list logo
