Here is the benchmark result for is_array:
https://github.com/ken-matsui/gcc-benches/blob/main/is_array.md#sat-jun-24-070630-am-pdt-2023
Time: -15.511%
Peak Memory Usage: +0.173923%
Total Memory Usage: -6.2037%
On Sat, Jun 24, 2023 at 6:54 AM Ken Matsui wrote:
>
> This patch implements built-in
This patch implements built-in trait for std::is_array.
gcc/cp/ChangeLog:
* cp-trait.def: Define __is_array.
* constraint.cc (diagnose_trait_expr): Handle CPTK_IS_ARRAY.
* semantics.cc (trait_expr_value): Likewise.
(finish_trait_expr): Likewise.
gcc/testsuite/Chan
