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// RUN: %clang_cc1 -std=c++11 -fsyntax-only -verify %s
int n;
struct S {
int &a; // expected-note 2{{here}}
int &b = n;
union {
const int k = 42;
};
S() {} // expected-error {{constructor for 'S' must explicitly initialize the reference member 'a'}}
S(int) : a(n) {} // ok
S(char) : b(n) {} // expected-error {{constructor for 'S' must explicitly initialize the reference member 'a'}}
S(double) : a(n), b(n) {} // ok
} s(0);
union U {
int a = 0;
char b = 'x';
// FIXME: these should all be rejected
U() {} // desired-error {{at most one member of a union may be initialized}}
U(int) : a(1) {} // desired-error {{at most one member of a union may be initialized}}
U(char) : b('y') {} // desired-error {{at most one member of a union may be initialized}}
U(double) : a(1), b('y') {} // desired-error {{at most one member of a union may be initialized}}
};
// PR10954: variant members do not acquire an implicit initializer.
namespace VariantMembers {
struct NoDefaultCtor {
NoDefaultCtor(int);
};
union V {
NoDefaultCtor ndc;
int n;
V() {}
V(int n) : n(n) {}
V(int n, bool) : ndc(n) {}
};
struct K {
union {
NoDefaultCtor ndc;
int n;
};
K() {}
K(int n) : n(n) {}
K(int n, bool) : ndc(n) {}
};
struct Nested {
Nested() {}
union {
struct {
NoDefaultCtor ndc;
};
};
};
}
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