| // C++26 P2686R4 - constexpr structured bindings |
| // { dg-do compile { target c++11 } } |
| // { dg-options "" } |
| |
| struct B { |
| int i, j; |
| long long k, l; |
| }; |
| |
| void |
| foo () |
| { |
| constexpr B a[3] = { { 1, 2, 3, 4 }, { 5, 6, 7, 8 }, { 9, 10, 11, 12 } }; |
| constexpr auto [ b, c, d ] = a; // { dg-warning "structured bindings only available with" "" { target c++14_down } } |
| // { dg-warning "structured binding declaration can be 'constexpr' only with" "" { target c++23_down } .-1 } |
| constexpr auto [ h, i, j, k ] = a[1]; // { dg-warning "structured bindings only available with" "" { target c++14_down } } |
| // { dg-warning "structured binding declaration can be 'constexpr' only with" "" { target c++23_down } .-1 } |
| static_assert (b.i == 1 && b.l == 4 && c.j == 6 && c.k == 7 && d.i == 9 && d.k == 11, ""); |
| static_assert (h == 5 && i == 6 && j == 7 && k == 8, ""); |
| } |
