clang/test/Sema/vla-2.c

   1 // RUN: %clang_cc1 %s -verify -fsyntax-only -pedantic
   2 // Check that we don't crash trying to emit warnings in a potentially-evaluated
   3 // sizeof or typeof.  (This test needs to be in a separate file because we use
   4 // a different codepath when we have already emitted an error.)
   5
   6 int PotentiallyEvaluatedSizeofWarn(int n) {
   7   return (int)sizeof *(0 << 32,(int(*)[n])0); // expected-warning {{left operand of comma operator has no effect}} expected-warning {{shift count >= width of type}}
   8 }
   9
  10 void PotentiallyEvaluatedTypeofWarn(int n) {
  11   __typeof(*(0 << 32,(int(*)[n])0)) x; // expected-warning {{left operand of comma operator has no effect}} expected-warning {{shift count >= width of type}}
  12   (void)x;
  13 }
  14
  15 void PotentiallyEvaluatedArrayBoundWarn(int n) {
  16   (void)*(int(*)[(0 << 32,n)])0; // expected-warning {{left operand of comma operator has no effect}}
  17 }