https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121521
--- Comment #1 from Desmond Gold <cooky.ykooc922 at gmail dot com> ---
Edited testcase:
#include <array>
#include <tuple>
struct Point {
int x, y, z;
};
int main() {
constexpr int arr[] {1, 2, 3};
constexpr auto [a, b, c] = arr;
static constexpr std::array std_arr {4, 5, 6};
constexpr auto [d, e, f] = std_arr; // error
constexpr auto [g, h, i] = std::array{42, 91, 72}; // error
constexpr auto [j, k] = std::make_tuple(1, 3.14f); // error
constexpr auto [l, m] = std::pair {'A', true}; // error
constexpr auto [x, y, z] = Point {9, 0, -4};
}
In general, it rejects lines that accept objects of types with tuple protocol.
