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// RUN: %clang_cc1 -fsyntax-only -verify %s
struct X1 { // has no implicit default constructor
X1(int);
};
struct X2 : X1 { // expected-note 2 {{'X2' declared here}}
X2(int);
};
struct X3 : public X2 { // expected-error {{implicit default constructor for 'X3' must explicitly initialize the base class 'X2' which does not have a default constructor}}
};
X3 x3; // expected-note {{first required here}}
struct X4 { // expected-error {{must explicitly initialize the member 'x2'}} \
// expected-error {{must explicitly initialize the reference member 'rx2'}}
X2 x2; // expected-note {{member is declared here}}
X2 & rx2; // expected-note {{declared here}}
};
X4 x4; // expected-note {{first required here}}
struct Y1 { // has no implicit default constructor
Y1(int);
};
struct Y2 : Y1 {
Y2(int);
Y2();
};
struct Y3 : public Y2 {
};
Y3 y3;
struct Y4 {
Y2 y2;
};
Y4 y4;
// More tests
struct Z1 { // expected-error {{must explicitly initialize the reference member 'z'}} \
// expected-error {{must explicitly initialize the const member 'c1'}}
int& z; // expected-note {{declared here}}
const int c1; // expected-note {{declared here}}
volatile int v1;
};
// Test default initialization which *requires* a constructor call for non-POD.
Z1 z1; // expected-note {{first required here}}
// Ensure that value initialization doesn't use trivial implicit constructors.
namespace PR7948 {
// Note that this is also non-POD to ensure we don't just special case PODs.
struct S { const int x; ~S(); };
const S arr[2] = { { 42 } };
}
// This is valid
union U {
const int i;
float f;
};
U u;
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