| // PR c++/11224 |
| // { dg-options "-Wunused" } |
| |
| struct someclass { |
| |
| bool isEmpty() const { return true; } |
| }; |
| |
| int main() |
| { |
| bool bOk = false; |
| someclass foo; |
| |
| bOk == foo.isEmpty(); // { dg-warning "not used" } |
| |
| return bOk; |
| } |
| |
| int& f(); |
| |
| void g() { |
| f() == 0; // { dg-warning "not used" } |
| f() != 1; // { dg-warning "not used" } |
| f() < 2; // { dg-warning "not used" } |
| f() > 3; // { dg-warning "not used" } |
| f() <= 4; // { dg-warning "not used" } |
| f() >= 5; // { dg-warning "not used" } |
| f() + 6; // { dg-warning "not used" } |
| f() - 7; // { dg-warning "not used" } |
| f() * 8; // { dg-warning "not used" } |
| f() / 9; // { dg-warning "not used" } |
| +f(); // { dg-warning "not used" } |
| -f(); // { dg-warning "not used" } |
| ++f(); |
| --f(); |
| f() = 10; |
| f() <<= 11; |
| } |