1 // RUN: %clang_cc1 -fsyntax-only -Wunused-variable -verify %s 2 struct __attribute__((warn_unused)) Test { 3 Test(); 4 ~Test(); 5 void use(); 6 }; 7 8 struct TestNormal { 9 TestNormal(); 10 }; 11 main(void)12int main(void) { 13 Test unused; // expected-warning {{unused variable 'unused'}} 14 Test used; 15 TestNormal normal; 16 used.use(); 17 18 int i __attribute__((warn_unused)) = 12; // expected-warning {{'warn_unused' attribute only applies to structs, unions, and classes}} 19 return i; 20 } 21