clang/test/SemaCXX/cxx1z-init-statement-warn-unused.cpp

   1 // RUN: %clang_cc1 -std=c++1z -verify -Wuninitialized %s
   2
   3 void testIf() {
   4   if (bool b; b) // expected-warning {{uninitialized}} expected-note {{to silence}}
   5     ;
   6   if (int a, b = 2; a) // expected-warning {{uninitialized}} expected-note {{to silence}}
   7     ;
   8   int a;
   9   if (a = 0; a) {} // OK
  10 }
  11
  12 void testSwitch() {
  13   switch (bool b; b) { // expected-warning {{uninitialized}} expected-warning {{boolean value}} expected-note {{to silence}}
  14     case 0:
  15       break;
  16   }
  17   switch (int a, b = 7; a) { // expected-warning {{uninitialized}} expected-note {{to silence}}
  18     case 0:
  19       break;
  20   }
  21   int c;
  22   switch (c = 0; c) { // OK
  23     case 0:
  24       break;
  25   }
  26 }