https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108458
--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Note GCC does implement consteval which allows for:
static_assert([]() { if consteval { return std::vector<int>{1, 2} ==
get_val(std::vector<std::vector<int>>{
{1, 2}, {3, 4}}); } }());
static_assert([]() { if consteval { return std::vector<int>{1, 2} ==
get_val(consteval_get_data()); }}());
static_assert([]() { if consteval { return std::vector<int>{1, 2} ==
get_val(constexpr_get_data()); }}());
But does not implement (yet) P2564 where you don't need the if consteval part
either for C++23 (see PR 107687 for the status there).
