1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
| // RUN: %clang_cc1 -std=c++11 -fsyntax-only -verify -Wno-reorder -Wno-c99-designator -Winitializer-overrides %s
// RUN: %clang_cc1 -std=c++11 -fsyntax-only -verify -Wno-reorder -Wno-c99-designator -Woverride-init %s
template <typename T> struct Foo {
struct SubFoo {
int bar1;
int bar2;
};
static void Test() { SubFoo sf = {.bar1 = 10, .bar2 = 20}; } // Expected no warning
};
void foo() {
Foo<int>::Test();
Foo<bool>::Test();
Foo<float>::Test();
}
template <typename T> struct Bar {
struct SubFoo {
int bar1;
int bar2;
};
static void Test() { SubFoo sf = {.bar1 = 10, // expected-note 2 {{previous initialization is here}}
.bar1 = 20}; } // expected-warning 2 {{initializer overrides prior initialization of this subobject}}
};
void bar() {
Bar<int>::Test(); // expected-note {{in instantiation of member function 'Bar<int>::Test' requested here}}
Bar<bool>::Test(); // expected-note {{in instantiation of member function 'Bar<bool>::Test' requested here}}
}
namespace Reorder {
struct X {
X(int n);
private:
int i;
};
struct foo {
X x;
X y;
};
foo n = {.y = 4, .x = 5};
X arr[2] = {[1] = 1, [0] = 2};
}
namespace Reorder2 {
struct S {
S();
S(const S &);
~S();
};
struct EF {
S s;
};
struct PN {
PN(const PN &);
};
extern PN pn;
struct FLN {
EF ef;
int it;
PN pn;
};
void f() {
FLN new_elem = {
.ef = EF(),
.pn = pn,
.it = 0,
};
}
}
namespace Reorder3 {
struct S {
int a, &b, &c; // expected-note 2{{here}}
};
S s1 = {
.a = 1, .c = s1.a, .b = s1.a
};
S s2 = {
.a = 1, .c = s2.a
}; // expected-error {{uninitialized}}
S s3 = {
.b = s3.a, .a = 1,
}; // expected-error {{uninitialized}}
}
// Check that we don't even think about whether holes in a designated
// initializer are zero-initializable if the holes are filled later.
namespace NoCheckingFilledHoles {
template<typename T> struct Error { using type = typename T::type; }; // expected-error 3{{'::'}}
template<int N>
struct DefaultInitIsError {
DefaultInitIsError(Error<int[N]> = {}); // expected-note 3{{instantiation}} expected-note 3{{passing}}
DefaultInitIsError(int, int);
};
template<int N>
struct X {
int a;
DefaultInitIsError<N> e;
int b;
};
X<1> x1 = {
.b = 2,
.a = 1,
{4, 4}
};
X<2> x2 = {
.e = {4, 4},
.b = 2,
.a = 1
};
X<3> x3 = {
.b = 2,
.a = 1
}; // expected-note {{default function argument}}
X<4> x4 = {
.a = 1,
.b = 2
}; // expected-note {{default function argument}}
X<5> x5 = {
.e = {4, 4},
.a = 1,
.b = 2
};
X<6> x6 = {
.a = 1,
.b = 2,
.e = {4, 4}
};
template<int N> struct Y { X<N> x; };
Y<7> y7 = {
.x = {.a = 1, .b = 2}, // expected-note {{default function argument}}
.x.e = {3, 4}
};
Y<8> y8 = {
.x = {.e = {3, 4}},
.x.a = 1,
.x.b = 2
};
}
namespace LargeArrayDesignator {
struct X {
int arr[1000000000];
};
struct Y {
int arr[3];
};
void f(X x);
void f(Y y) = delete;
void g() {
f({.arr[4] = 1});
}
}
namespace ADL {
struct A {};
void f(A, int);
namespace X {
void f(A, int);
// OK. Would fail if checking {} against type A set the type of the
// initializer list to A, because ADL would find ADL::f, resulting in
// ambiguity.
void g() { f({}, {}); }
}
}
|