| 1 | // RUN: %clang_cc1 -std=c++11 %s -verify |
| 2 | // expected-no-diagnostics |
| 3 | |
| 4 | struct Value { |
| 5 | constexpr Value(int n) : n(n) {} |
| 6 | constexpr operator short() const { return n; } |
| 7 | int n; |
| 8 | }; |
| 9 | enum E { E0, E1 }; |
| 10 | struct Alt { |
| 11 | constexpr operator E() const { return E0; } |
| 12 | }; |
| 13 | |
| 14 | constexpr short s = Alt(); |
| 15 | |
| 16 | void test(Value v) { |
| 17 | switch (v) { |
| 18 | case Alt(): |
| 19 | case E1: |
| 20 | case Value(2): |
| 21 | case 3: |
| 22 | break; |
| 23 | } |
| 24 | switch (Alt a = Alt()) { |
| 25 | case Alt(): |
| 26 | case E1: |
| 27 | case Value(2): |
| 28 | case 3: |
| 29 | break; |
| 30 | } |
| 31 | switch (E0) { |
| 32 | case Alt(): |
| 33 | case E1: |
| 34 | // FIXME: These should produce a warning that 2 and 3 are not values of the |
| 35 | // enumeration. |
| 36 | case Value(2): |
| 37 | case 3: |
| 38 | break; |
| 39 | } |
| 40 | } |
| 41 | |