p18-cxx11.cpp source code [clang_source_code/test/CXX/special/class.copy/p18-cxx11.cpp]

1	// RUN: %clang_cc1 -std=c++11 %s -verify
2	// expected-no-diagnostics
3
4	// C++98 [class.copy]p10 / C++11 [class.copy]p18.
5
6	// The implicitly-declared copy assignment operator for a class X will have the form
7	// X& X::operator=(const X&)
8	// if [every direct subobject] has a copy assignment operator whose first parameter is
9	// of type 'const volatile[opt] T &' or 'T'. Otherwise, it will have the form
10	// X &X::operator=(X&)
11
12	struct ConstCopy {
13	ConstCopy &operator=(const ConstCopy &);
14	};
15
16	struct NonConstCopy {
17	NonConstCopy &operator=(NonConstCopy &);
18	};
19
20	struct DeletedConstCopy {
21	DeletedConstCopy &operator=(const DeletedConstCopy &) = delete;
22	};
23
24	struct DeletedNonConstCopy {
25	DeletedNonConstCopy &operator=(DeletedNonConstCopy &) = delete;
26	};
27
28	struct ImplicitlyDeletedConstCopy {
29	ImplicitlyDeletedConstCopy &operator=(ImplicitlyDeletedConstCopy &&);
30	};
31
32	struct ByValueCopy {
33	ByValueCopy &operator=(ByValueCopy);
34	};
35
36	struct AmbiguousConstCopy {
37	AmbiguousConstCopy &operator=(const AmbiguousConstCopy&);
38	AmbiguousConstCopy &operator=(AmbiguousConstCopy);
39	};
40
41
42	struct A : ConstCopy {};
43	struct B : NonConstCopy { ConstCopy a; };
44	struct C : ConstCopy { NonConstCopy a; };
45	struct D : DeletedConstCopy {};
46	struct E : DeletedNonConstCopy {};
47	struct F { ImplicitlyDeletedConstCopy a; };
48	struct G : virtual B {};
49	struct H : ByValueCopy {};
50	struct I : AmbiguousConstCopy {};
51
52	struct Test {
53	friend A &A::operator=(const A &);
54	friend B &B::operator=(B &);
55	friend C &C::operator=(C &);
56	friend D &D::operator=(const D &);
57	friend E &E::operator=(E &);
58	friend F &F::operator=(const F &);
59	friend G &G::operator=(G &);
60	friend H &H::operator=(const H &);
61	friend I &I::operator=(const I &);
62	};
63

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