llvm-project/clang/test/SemaCXX/constructor.cpp

100 lines
2.2 KiB
C++

// RUN: %clang_cc1 -fsyntax-only -verify %s
typedef int INT;
class Foo {
Foo();
(Foo)(float) { }
explicit Foo(int); // expected-note {{previous declaration is here}}
Foo(const Foo&);
((Foo))(INT); // expected-error{{cannot be redeclared}}
Foo(Foo foo, int i = 17, int j = 42); // expected-error{{copy constructor must pass its first argument by reference}}
static Foo(short, short); // expected-error{{constructor cannot be declared 'static'}}
virtual Foo(double); // expected-error{{constructor cannot be declared 'virtual'}}
Foo(long) const; // expected-error{{'const' qualifier is not allowed on a constructor}}
int Foo(int, int); // expected-error{{constructor cannot have a return type}}
volatile Foo(float); // expected-error{{constructor cannot have a return type}}
};
Foo::Foo(const Foo&) { }
typedef struct {
int version;
} Anon;
extern const Anon anon;
extern "C" const Anon anon2;
// PR3188: The extern declaration complained about not having an appropriate
// constructor.
struct x;
extern x a;
// A similar case.
struct y {
y(int);
};
extern y b;
struct Length {
Length l() const { return *this; }
};
// <rdar://problem/6815988>
struct mmst_reg{
char mmst_reg[10];
};
// PR3948
namespace PR3948 {
// PR3948
class a {
public:
int b(int a());
};
int x();
void y() {
a z; z.b(x);
}
}
namespace A {
struct S {
S();
S(int);
void f1();
void f2();
operator int ();
~S();
};
}
A::S::S() {}
void A::S::f1() {}
struct S {};
A::S::S(int) {}
void A::S::f2() {}
A::S::operator int() { return 1; }
A::S::~S() {}
namespace PR38286 {
// FIXME: It'd be nice to give more consistent diagnostics for these cases
// (but they're all failing for somewhat different reasons...).
template<typename> struct A;
template<typename T> A<T>::A() {} // expected-error {{incomplete type 'A' named in nested name specifier}}
/*FIXME: needed to recover properly from previous error*/;
template<typename> struct B;
template<typename T> void B<T>::f() {} // expected-error {{out-of-line definition of 'f' from class 'B<type-parameter-0-0>'}}
template<typename> struct C;
template<typename T> C<T>::~C() {} // expected-error {{no type named 'C' in 'C<type-parameter-0-0>'}}
}