| // P1061R10 - Structured Bindings can introduce a Pack |
| // { dg-do compile { target c++11 } } |
| // { dg-options "" } |
| |
| typedef int V __attribute__((vector_size (16 * sizeof (int)))); |
| |
| template <int N> |
| void |
| foo () |
| { |
| V v = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16 }; |
| auto [va, vb, vc, vd, ...ve, vf, vg, vh, vi, vj, vk, vl, vm, vn, vo, vp, vq, vr] = v; |
| // { dg-warning "structured binding packs only available with" "" { target { c++17 && c++23_down } } .-1 } |
| // { dg-warning "structured bindings only available with" "" { target c++14_down } .-2 } |
| // { dg-error "18 names provided for structured binding" "" { target *-*-* } .-3 } |
| // { dg-message "while '__vector\\\(16\\\) int' decomposes into 16 elements" "" { target *-*-* } .-4 } |
| _Complex double c = 1.0 + 2.0i; |
| auto [...ca, cb, cc, cd] = c; // { dg-warning "structured binding packs only available with" "" { target { c++17 && c++23_down } } } |
| // { dg-warning "structured bindings only available with" "" { target c++14_down } .-1 } |
| // { dg-error "4 names provided for structured binding" "" { target *-*-* } .-2 } |
| // { dg-message "while '__complex__ double' decomposes into 2 elements" "" { target *-*-* } .-3 } |
| } |
| |
| int |
| main () |
| { |
| foo <0> (); |
| } |
