llvm-for-llvmta/tools/clang/test/CXX/special/class.init/class.base.init/p8-0x.cpp

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2022-04-25 13:02:35 +02:00
// 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; // expected-note {{previous initialization}}
char b = 'x'; // expected-error {{initializing multiple members of union}}
U() {}
U(int) : a(1) {}
U(char) : b('y') {}
U(double) : a(1), // expected-note{{previous initialization is here}}
b('y') {} // expected-error{{initializing multiple members of union}}
};
// 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;
};
};
};
}