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111
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1 // PR c++/11224
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2 // { dg-options "-Wunused" }
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3
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4 struct someclass {
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5
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6 bool isEmpty() const { return true; }
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7 };
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8
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9 int main()
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10 {
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11 bool bOk = false;
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12 someclass foo;
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13
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14 bOk == foo.isEmpty(); // { dg-warning "not used" }
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15
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16 return bOk;
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17 }
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18
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19 int& f();
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20
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21 void g() {
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22 f() == 0; // { dg-warning "not used" }
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23 f() != 1; // { dg-warning "not used" }
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24 f() < 2; // { dg-warning "not used" }
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25 f() > 3; // { dg-warning "not used" }
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26 f() <= 4; // { dg-warning "not used" }
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27 f() >= 5; // { dg-warning "not used" }
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28 f() + 6; // { dg-warning "not used" }
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29 f() - 7; // { dg-warning "not used" }
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30 f() * 8; // { dg-warning "not used" }
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31 f() / 9; // { dg-warning "not used" }
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32 +f(); // { dg-warning "not used" }
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33 -f(); // { dg-warning "not used" }
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34 ++f();
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35 --f();
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36 f() = 10;
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37 f() <<= 11;
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38 }
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