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      1 // Header for PCH test cxx1z-init-statement.cpp
      2 
      3 constexpr int test_if(int x) {
      4   if (int a = ++x; a == 0) {
      5     return -1;
      6   } else if (++a; a == 2) {
      7     return 0;
      8   }
      9   return 2;
     10 }
     11 
     12 constexpr int test_switch(int x) {
     13   switch (int a = ++x; a) {
     14     case 0:
     15       return -1;
     16     case 1:
     17       return 0;
     18     case 2:
     19       return 1;
     20   }
     21   return 2;
     22 }
     23