1 | // RUN: %clang_cc1 -fsyntax-only -verify %s |
2 | // RUN: %clang_cc1 -fsyntax-only -verify -std=c++98 %s |
3 | // RUN: %clang_cc1 -fsyntax-only -verify -std=c++11 %s |
4 | |
5 | class Base { // expected-warning{{class 'Base' does not declare any constructor to initialize its non-modifiable members}} |
6 | #if __cplusplus <= 199711L |
7 | // expected-error@-2 {{cannot define the implicit copy assignment operator for 'Base', because non-static reference member 'ref' cannot use copy assignment operator}} |
8 | #endif |
9 | |
10 | int &ref; // expected-note{{reference member 'ref' will never be initialized}} |
11 | #if __cplusplus <= 199711L |
12 | // expected-note@-2 {{declared here}} |
13 | #else |
14 | // expected-note@-4 2 {{copy assignment operator of 'Base' is implicitly deleted because field 'ref' is of reference type 'int &'}} |
15 | #endif |
16 | }; |
17 | |
18 | class X : Base { |
19 | #if __cplusplus <= 199711L |
20 | // expected-note@-2 {{assignment operator for 'Base' first required here}} |
21 | // expected-error@-3 {{cannot define the implicit copy assignment operator for 'X', because non-static const member 'cint' cannot use copy assignment operator}} |
22 | #else |
23 | // expected-note@-5 2 {{copy assignment operator of 'X' is implicitly deleted because base class 'Base' has a deleted copy assignment operator}} |
24 | #endif |
25 | |
26 | public: |
27 | X(); |
28 | const int cint; |
29 | #if __cplusplus <= 199711L |
30 | // expected-note@-2 {{declared here}} |
31 | #endif |
32 | }; |
33 | |
34 | struct Y : X { |
35 | Y(); |
36 | Y& operator=(const Y&); |
37 | Y& operator=(volatile Y&); |
38 | Y& operator=(const volatile Y&); |
39 | Y& operator=(Y&); |
40 | }; |
41 | |
42 | class Z : Y {}; |
43 | |
44 | Z z1; |
45 | Z z2; |
46 | |
47 | // Test1 |
48 | void f(X x, const X cx) { |
49 | x = cx; |
50 | #if __cplusplus <= 199711L |
51 | // expected-note@-2 2{{assignment operator for 'X' first required here}} |
52 | #else |
53 | // expected-error@-4 {{object of type 'X' cannot be assigned because its copy assignment operator is implicitly deleted}} |
54 | #endif |
55 | |
56 | x = cx; |
57 | #if __cplusplus >= 201103L |
58 | // expected-error@-2 {{object of type 'X' cannot be assigned because its copy assignment operator is implicitly deleted}} |
59 | #endif |
60 | z1 = z2; |
61 | } |
62 | |
63 | // Test2 |
64 | class T {}; |
65 | T t1; |
66 | T t2; |
67 | |
68 | void g() { |
69 | t1 = t2; |
70 | } |
71 | |
72 | // Test3 |
73 | class V { |
74 | public: |
75 | V(); |
76 | V &operator = (V &b); |
77 | }; |
78 | |
79 | class W : V {}; |
80 | W w1, w2; |
81 | |
82 | void h() { |
83 | w1 = w2; |
84 | } |
85 | |
86 | // Test4 |
87 | |
88 | class B1 { |
89 | public: |
90 | B1(); |
91 | B1 &operator = (B1 b); |
92 | }; |
93 | |
94 | class D1 : B1 {}; |
95 | D1 d1, d2; |
96 | |
97 | void i() { |
98 | d1 = d2; |
99 | } |
100 | |
101 | // Test5 |
102 | |
103 | class E1 { |
104 | #if __cplusplus <= 199711L |
105 | // expected-error@-2 {{cannot define the implicit copy assignment operator for 'E1', because non-static const member 'a' cannot use copy assignment operator}} |
106 | #endif |
107 | |
108 | public: |
109 | const int a; |
110 | #if __cplusplus <= 199711L |
111 | // expected-note@-2 {{declared here}} |
112 | #else |
113 | // expected-note@-4 {{copy assignment operator of 'E1' is implicitly deleted because field 'a' is of const-qualified type 'const int'}} |
114 | #endif |
115 | E1() : a(0) {} |
116 | |
117 | }; |
118 | |
119 | E1 e1, e2; |
120 | |
121 | void j() { |
122 | e1 = e2; |
123 | #if __cplusplus <= 199711L |
124 | // expected-note@-2 {{assignment operator for 'E1' first required here}} |
125 | #else |
126 | // expected-error@-4 {{object of type 'E1' cannot be assigned because its copy assignment operator is implicitly deleted}} |
127 | #endif |
128 | } |
129 | |
130 | namespace ProtectedCheck { |
131 | struct X { |
132 | protected: |
133 | X &operator=(const X&); |
134 | #if __cplusplus <= 199711L |
135 | // expected-note@-2 {{declared protected here}} |
136 | #endif |
137 | }; |
138 | |
139 | struct Y : public X { }; |
140 | |
141 | void f(Y y) { y = y; } |
142 | |
143 | struct Z { |
144 | #if __cplusplus <= 199711L |
145 | // expected-error@-2 {{'operator=' is a protected member of 'ProtectedCheck::X'}} |
146 | #endif |
147 | X x; |
148 | #if __cplusplus >= 201103L |
149 | // expected-note@-2 {{copy assignment operator of 'Z' is implicitly deleted because field 'x' has an inaccessible copy assignment operator}} |
150 | #endif |
151 | }; |
152 | |
153 | void f(Z z) { z = z; } |
154 | #if __cplusplus <= 199711L |
155 | // expected-note@-2 {{implicit copy assignment operator}} |
156 | #else |
157 | // expected-error@-4 {{object of type 'ProtectedCheck::Z' cannot be assigned because its copy assignment operator is implicitly deleted}} |
158 | #endif |
159 | } |
160 | |
161 | namespace MultiplePaths { |
162 | struct X0 { |
163 | X0 &operator=(const X0&); |
164 | }; |
165 | |
166 | struct X1 : public virtual X0 { }; |
167 | |
168 | struct X2 : X0, X1 { }; // expected-warning{{direct base 'MultiplePaths::X0' is inaccessible due to ambiguity:\n struct MultiplePaths::X2 -> struct MultiplePaths::X0\n struct MultiplePaths::X2 -> struct MultiplePaths::X1 -> struct MultiplePaths::X0}} |
169 | |
170 | void f(X2 x2) { x2 = x2; } |
171 | } |
172 | |