| // { dg-do compile { target c++11 } } |
| |
| // From N2235 |
| |
| // 4.5.3 constant expressions |
| |
| // p 4 |
| struct A { |
| constexpr A(int i) : val(i) { } |
| constexpr operator int() const { return val; } |
| constexpr operator long() const { return -1; } |
| private: |
| int val; |
| }; |
| |
| template<int I> struct X { static const int i = I; }; |
| constexpr A a = 42; |
| |
| X<a> x; // OK: unique conversion to int |
| int ar[X<a>::i]; // also OK |
| int ary[a]; // { dg-error "could not convert" } ambiguous conversion |
| // { dg-error "9:size of array .ary. has non-integral" "" { target c++11 } .-1 } |
