20 lines · c
1// RUN: %clang_cc1 %s -verify -fsyntax-only -pedantic2// Check that we don't crash trying to emit warnings in a potentially-evaluated3// sizeof or typeof. (This test needs to be in a separate file because we use4// a different codepath when we have already emitted an error.)5 6int PotentiallyEvaluatedSizeofWarn(int n) {7 return (int)sizeof *(0 << 32,(int(*)[n])0); /* expected-warning {{shift count >= width of type}}8 expected-warning {{left operand of comma operator has no effect}} */9}10 11void PotentiallyEvaluatedTypeofWarn(int n) {12 __typeof(*(0 << 32,(int(*)[n])0)) x; /* expected-warning {{shift count >= width of type}}13 expected-warning {{left operand of comma operator has no effect}} */14 (void)x;15}16 17void PotentiallyEvaluatedArrayBoundWarn(int n) {18 (void)*(int(*)[(0 << 32,n)])0; // expected-warning {{left operand of comma operator has no effect}}19}20