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111
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1 // PR c++/42844
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2 // { dg-do compile { target c++11 } }
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3
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4 struct A // { dg-message "user-provided default constructor" }
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5 {
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6 int i;
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7 A() = default; // { dg-message "not user-provided" }
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8 };
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9
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10 struct Base
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11 {
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12 Base() {}
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13 };
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14
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15 struct Derived : Base // { dg-message "user-provided default constructor" }
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16 {
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17 int i;
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18 Derived() = default; // { dg-message "not user-provided" }
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19 };
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20
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21 struct Derived2 : Base // { dg-message "user-provided default constructor" }
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22 {
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23 int i;
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24 Derived2() = default; // { dg-message "not user-provided" }
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25 Derived2( Derived2 const& ) = default;
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26 };
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27
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28 struct Derived3 : Base // { dg-message "user-provided default constructor" }
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29 {
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30 int i;
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31 Derived3( Derived3 const& ) = default;
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32 Derived3() = default; // { dg-message "not user-provided" }
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33 };
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34
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35 void f()
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36 {
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37 const A a; // { dg-error "uninitialized const" }
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38 const Derived d; // { dg-error "uninitialized const" }
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39 const Derived2 d2; // { dg-error "uninitialized const" }
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40 const Derived3 d3; // { dg-error "uninitialized const" }
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41 }
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