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111
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1 // Test for const_cast to reference (5.2.11/4).
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2 // { dg-do compile { target c++11 } }
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3
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4 template <class T> T&& xval();
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5 template <class T> T& lval();
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6 template <class T> T prval();
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7
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8 struct A { };
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9
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10 int main()
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11 {
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12 const_cast<int&>(lval<int>());
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145
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13 const_cast<int&>(xval<int>()); // { dg-error "3:invalid .const_cast. of an rvalue" }
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14 const_cast<int&>(prval<int>()); // { dg-error "3:invalid .const_cast. of an rvalue" }
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111
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15 const_cast<int&&>(lval<int>());
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16 const_cast<int&&>(xval<int>());
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145
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17 const_cast<int&&>(prval<int>()); // { dg-error "3:invalid .const_cast. of an rvalue" }
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111
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18 const_cast<A&&>(lval<A>());
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19 const_cast<A&&>(xval<A>());
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20 const_cast<A&&>(prval<A>());
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21 }
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