| // { dg-do compile } | |
| // { dg-options "-std=c++2a" } | |
| consteval int foo (int x) { return x; } | |
| int d = 6; // { dg-message "'int d' is not const" } | |
| bool e = __builtin_has_attribute (foo (d), packed); // { dg-error "the value of 'd' is not usable in a constant expression" } |