clang/test/CXX/stmt.stmt/stmt.select/stmt.switch/p2-0x.cpp

   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 }