| // { dg-do compile { target c++11 } } |
| // { dg-options "" } |
| |
| struct A |
| { |
| int i; |
| constexpr operator int() { return 42; } |
| }; |
| |
| #define SA(X) static_assert ((X),#X) |
| constexpr A a1 { A() }; |
| SA(a1.i == 0); |
| constexpr A a2 { i: A() }; |
| SA(a2.i == 42); |
| #if __cpp_constexpr >= 201304L |
| constexpr int f3 () { A const &r { A() }; return r.i; } |
| SA(f3() == 0); |
| constexpr int f4 () { A const &r { i: A() }; return r.i; } |
| SA(f4() == 42); |
| constexpr int f5 () { A ar[1]{{ A() }}; return ar[0].i; } |
| SA(f5() == 0); |
| constexpr int f5a () { A ar[1]{{ i: A() }}; return ar[0].i; } |
| SA(f5a() == 42); |
| #if __cpp_constexpr >= 201907L |
| constexpr int f6 () { A* p = new A{A()}; int i = p->i; delete p; return i; } |
| SA(f6() == 0); |
| constexpr int f6a () { A* p = new A{i:A()}; int i = p->i; delete p; return i; } |
| SA(f6a() == 42); |
| #endif |
| #endif |
| constexpr int f7 (A a) { return a.i; } |
| SA(f7({A()}) == 0); |
| SA(f7({i:A()}) == 42); |
