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1 // Example from issue 1125 drafting; D() and v were well-formed with the
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2 // wording approved in Rapperswil, now seems they should be ill-formed.
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3 // { dg-do compile { target c++11 } }
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4
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5 struct B {
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6 constexpr B(int x) : i(0) { } // "x" is unused
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7 int i;
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8 };
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9
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10 int global; // { dg-message "not const" }
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11
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12 struct D : B {
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13 constexpr D() : B(global) { } // { dg-error "global|argument" }
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14 };
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15
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16 struct A2 {
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17 constexpr A2(bool b, int x) : m(b ? 42 : x) { }
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18 int m;
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19 };
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20
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21 // ok, constructor call initializes m with the value 42 after substitution
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22 constexpr int v = A2(true, global).m; // { dg-error "global" }
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23 // error: initializer for m is "x", which is non-constant
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24 constexpr int w = A2(false, global).m; // { dg-error "global" }
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