69 lines
1.6 KiB
C++
69 lines
1.6 KiB
C++
|
// 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;
|