llvm-project/clang/test/SemaCXX/warn-unused-attribute.cpp

21 lines
472 B
C++

// RUN: %clang_cc1 -fsyntax-only -Wunused-variable -verify %s
struct __attribute__((warn_unused)) Test {
Test();
~Test();
void use();
};
struct TestNormal {
TestNormal();
};
int main(void) {
Test unused; // expected-warning {{unused variable 'unused'}}
Test used;
TestNormal normal;
used.use();
int i __attribute__((warn_unused)) = 12; // expected-warning {{'warn_unused' attribute only applies to structs, unions, and classes}}
return i;
}