1// RUN: %clang_cc1 -fsyntax-only -pedantic -verify %s
2// RUN: %clang_cc1 -fsyntax-only -pedantic -verify -std=c++98 %s
3// RUN: %clang_cc1 -fsyntax-only -pedantic -verify -std=c++11 %s
4// C++ [dcl.init.aggr]p2
5struct A {
6  int x;
7  struct B {
8    int i;
9    int j;
10  } b;
11} a1 = { 1, { 2, 3 } };
12
13struct NonAggregate {
14#if __cplusplus >= 201103L
15// expected-note@-2 3 {{candidate constructor (the implicit copy constructor) not viable}}
16// expected-note@-3 3 {{candidate constructor (the implicit move constructor) not viable}}
17#endif
18  NonAggregate();
19#if __cplusplus >= 201103L
20// expected-note@-2 3 {{candidate constructor not viable: requires 0 arguments, but 2 were provided}}
21#endif
22  int a, b;
23};
24NonAggregate non_aggregate_test = { 1, 2 };
25#if __cplusplus <= 199711L
26// expected-error@-2 {{non-aggregate type 'NonAggregate' cannot be initialized with an initializer list}}
27#else
28// expected-error@-4 {{no matching constructor for initialization of 'NonAggregate'}}
29#endif
30
31NonAggregate non_aggregate_test2[2] = { { 1, 2 }, { 3, 4 } };
32#if __cplusplus <= 199711L
33// expected-error@-2 2 {{non-aggregate type 'NonAggregate' cannot be initialized with an initializer list}}
34#else
35// expected-error@-4 2 {{no matching constructor for initialization of 'NonAggregate'}}
36#endif
37
38// C++ [dcl.init.aggr]p3
39A a_init = A();
40
41// C++ [dcl.init.aggr]p4
42int x[] = { 1, 3, 5 };
43int x_sizecheck[(sizeof(x) / sizeof(int)) == 3? 1 : -1];
44int x2[] = { }; // expected-warning{{zero size arrays are an extension}}
45
46// C++ [dcl.init.aggr]p5
47struct StaticMemberTest {
48  int i;
49  static int s;
50  int *j;
51} smt = { 1, &smt.i };
52
53// C++ [dcl.init.aggr]p6
54char cv[4] = { 'a', 's', 'd', 'f', 0 }; // expected-error{{excess elements in array initializer}}
55
56// C++ [dcl.init.aggr]p7
57struct TooFew { int a; char* b; int c; };
58TooFew too_few = { 1, "asdf" };
59#if __cplusplus <= 199711L
60// expected-warning@-2 {{conversion from string literal to 'char *' is deprecated}}
61#else
62// expected-warning@-4 {{ISO C++11 does not allow conversion from string literal to 'char *'}}
63#endif
64
65struct NoDefaultConstructor {
66#if __cplusplus <= 199711L
67// expected-note@-2 3 {{candidate constructor (the implicit copy constructor)}}
68// expected-note@-3 {{declared here}}
69#else
70// expected-note@-5 4 {{candidate constructor (the implicit copy constructor)}}
71// expected-note@-6 4 {{candidate constructor (the implicit move constructor)}}
72#endif
73
74  NoDefaultConstructor(int);
75#if __cplusplus <= 199711L
76  // expected-note@-2 3 {{candidate constructor not viable: requires 1 argument, but 0 were provided}}
77#else
78  // expected-note@-4 4 {{candidate constructor not viable: requires 1 argument, but 0 were provided}}
79#endif
80
81};
82struct TooFewError {
83#if __cplusplus <= 199711L
84// expected-error@-2 {{implicit default constructor for}}
85#endif
86
87  int a;
88  NoDefaultConstructor nodef;
89#if __cplusplus <= 199711L
90// expected-note@-2 {{member is declared here}}
91// expected-note@-3 2{{in implicit initialization of field 'nodef' with omitted initializer}}
92#else
93// expected-note@-5 3{{in implicit initialization of field 'nodef' with omitted initializer}}
94#endif
95};
96TooFewError too_few_okay = { 1, 1 };
97TooFewError too_few_error = { 1 }; // expected-error{{no matching constructor}}
98
99TooFewError too_few_okay2[2] = { 1, 1 };
100#if __cplusplus <= 199711L
101// expected-note@-2 {{implicit default constructor for 'TooFewError' first required here}}
102#else
103// expected-error@-4 {{no matching constructor for initialization of 'NoDefaultConstructor'}}
104// expected-note@-5 {{in implicit initialization of array element 1 with omitted initializer}}
105#endif
106
107TooFewError too_few_error2[2] = { 1 }; // expected-error{{no matching constructor}}
108
109NoDefaultConstructor too_few_error3[3] = { }; // expected-error {{no matching constructor}} expected-note {{implicit initialization of array element 0}}
110
111// C++ [dcl.init.aggr]p8
112struct Empty { };
113struct EmptyTest {
114  Empty s;
115  int i;
116} empty_test = { { }, 3 };
117
118EmptyTest empty_test2 = { 3 }; // expected-error{{initializer for aggregate with no elements requires explicit braces}}
119
120struct NonEmpty {
121  int a;
122  Empty empty;
123};
124struct NonEmptyTest {
125  NonEmpty a, b;
126} non_empty_test = { { }, { } };
127
128// C++ [dcl.init.aggr]p9
129struct HasReference {
130  int i;
131  int &j; // expected-note{{uninitialized reference member is here}}
132};
133int global_int;
134HasReference r1 = { 1, global_int };
135HasReference r2 = { 1 } ; // expected-error{{reference member of type 'int &' uninitialized}}
136
137// C++ [dcl.init.aggr]p10
138// Note: the behavior here is identical to C
139int xs[2][2] = { 3, 1, 4, 2 };
140float y[4][3] = { { 1 }, { 2 }, { 3 }, { 4 } };
141
142// C++ [dcl.init.aggr]p11
143// Note: the behavior here is identical to C
144float y2[4][3] = { { 1, 3, 5 }, { 2, 4, 6 }, { 3, 5, 7 } };
145float same_as_y2[4][3] = { 1, 3, 5, 2, 4, 6, 3, 5, 7 };
146
147// C++ [dcl.init.aggr]p12
148struct A2 {
149  int i;
150  operator int *();
151};
152struct B2 {
153  A2 a1, a2;
154  int *z;
155};
156struct C2 {
157  operator A2();
158};
159struct D2 {
160  operator int();
161};
162A2 a2;
163C2 c2;
164D2 d2;
165B2 b2 = { 4, a2, a2 };
166B2 b2_2 = { 4, d2, 0 };
167B2 b2_3 = { c2, a2, a2 };
168
169// C++ [dcl.init.aggr]p15:
170union u { int a; char* b; }; // expected-note{{candidate constructor (the implicit copy constructor)}}
171#if __cplusplus >= 201103L
172// expected-note@-2 {{candidate constructor (the implicit move constructor)}}
173#endif
174
175u u1 = { 1 };
176u u2 = u1;
177u u3 = 1; // expected-error{{no viable conversion}}
178u u4 = { 0, "asdf" };  // expected-error{{excess elements in union initializer}}
179u u5 = { "asdf" }; // expected-error{{cannot initialize a member subobject of type 'int' with an lvalue of type 'const char [5]'}}
180