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
|
// RUN: %check_clang_tidy -check-suffixes=,DEFAULT -std=c++17-or-later %s bugprone-invalid-enum-default-initialization %t
// RUN: %check_clang_tidy -std=c++17-or-later %s bugprone-invalid-enum-default-initialization %t -- -config="{CheckOptions: {bugprone-invalid-enum-default-initialization.IgnoredEnums: '::MyEnum'}}"
enum class Enum0: int {
A = 0,
B
};
enum class Enum1: int {
A = 1,
B
};
enum Enum2 {
Enum_A = 4,
Enum_B
};
Enum0 E0_1{};
Enum0 E0_2 = Enum0();
Enum0 E0_3;
Enum0 E0_4{0};
Enum0 E0_5{Enum0::A};
Enum0 E0_6{Enum0::B};
Enum1 E1_1{};
// CHECK-NOTES: :[[@LINE-1]]:11: warning: enum value of type 'Enum1' initialized with invalid value of 0, enum doesn't have a zero-value enumerator
// CHECK-NOTES: :9:12: note: enum is defined here
Enum1 E1_2 = Enum1();
// CHECK-NOTES: :[[@LINE-1]]:14: warning: enum value of type 'Enum1' initialized with invalid value of 0, enum doesn't have a zero-value enumerator
// CHECK-NOTES: :9:12: note: enum is defined here
Enum1 E1_3;
Enum1 E1_4{0};
Enum1 E1_5{Enum1::A};
Enum1 E1_6{Enum1::B};
Enum2 E2_1{};
// CHECK-NOTES: :[[@LINE-1]]:11: warning: enum value of type 'Enum2' initialized with invalid value of 0, enum doesn't have a zero-value enumerator
// CHECK-NOTES: :14:6: note: enum is defined here
Enum2 E2_2 = Enum2();
// CHECK-NOTES: :[[@LINE-1]]:14: warning: enum value of type 'Enum2' initialized with invalid value of 0, enum doesn't have a zero-value enumerator
// CHECK-NOTES: :14:6: note: enum is defined here
void f1() {
static Enum1 S; // FIMXE: warn for this?
Enum1 A;
Enum1 B = Enum1();
// CHECK-NOTES: :[[@LINE-1]]:13: warning: enum value of type 'Enum1' initialized with invalid value of 0, enum doesn't have a zero-value enumerator
// CHECK-NOTES: :9:12: note: enum is defined here
int C = int();
}
void f2() {
Enum1 A{};
// CHECK-NOTES: :[[@LINE-1]]:10: warning: enum value of type 'Enum1' initialized with invalid value of 0, enum doesn't have a zero-value enumerator
// CHECK-NOTES: :9:12: note: enum is defined here
Enum1 B = Enum1();
// CHECK-NOTES: :[[@LINE-1]]:13: warning: enum value of type 'Enum1' initialized with invalid value of 0, enum doesn't have a zero-value enumerator
// CHECK-NOTES: :9:12: note: enum is defined here
Enum1 C[5] = {{}};
// CHECK-NOTES: :[[@LINE-1]]:16: warning: enum value of type 'Enum1' initialized with invalid value of 0, enum doesn't have a zero-value enumerator
// CHECK-NOTES: :9:12: note: enum is defined here
// CHECK-NOTES: :[[@LINE-3]]:17: warning: enum value of type 'Enum1' initialized with invalid value of 0, enum doesn't have a zero-value enumerator
// CHECK-NOTES: :9:12: note: enum is defined here
Enum1 D[5] = {}; // FIMXE: warn for this?
// CHECK-NOTES: :[[@LINE-1]]:16: warning: enum value of type 'Enum1' initialized with invalid value of 0, enum doesn't have a zero-value enumerator
// CHECK-NOTES: :9:12: note: enum is defined here
}
struct S1 {
Enum1 E_1{};
// CHECK-NOTES: :[[@LINE-1]]:12: warning: enum value of type 'Enum1' initialized with invalid value of 0, enum doesn't have a zero-value enumerator
// CHECK-NOTES: :9:12: note: enum is defined here
Enum1 E_2 = Enum1();
// CHECK-NOTES: :[[@LINE-1]]:15: warning: enum value of type 'Enum1' initialized with invalid value of 0, enum doesn't have a zero-value enumerator
// CHECK-NOTES: :9:12: note: enum is defined here
Enum1 E_3;
Enum1 E_4;
Enum1 E_5;
S1() :
E_3{},
// CHECK-NOTES: :[[@LINE-1]]:8: warning: enum value of type 'Enum1' initialized with invalid value of 0, enum doesn't have a zero-value enumerator
// CHECK-NOTES: :9:12: note: enum is defined here
E_4(),
// CHECK-NOTES: :[[@LINE-1]]:8: warning: enum value of type 'Enum1' initialized with invalid value of 0, enum doesn't have a zero-value enumerator
// CHECK-NOTES: :9:12: note: enum is defined here
E_5{Enum1::B}
{}
};
struct S2 {
Enum0 X;
Enum1 Y;
Enum2 Z;
};
struct S3 {
S2 X;
int Y;
};
struct S4 : public S3 {
int Z;
};
struct S5 {
S2 X[3];
int Y;
};
S2 VarS2{};
// CHECK-NOTES: :[[@LINE-1]]:9: warning: enum value of type 'Enum1' initialized with invalid value of 0
// CHECK-NOTES: :9:12: note: enum is defined here
// CHECK-NOTES: :[[@LINE-3]]:9: warning: enum value of type 'Enum2' initialized with invalid value of 0
// CHECK-NOTES: :14:6: note: enum is defined here
S3 VarS3{};
// CHECK-NOTES: :[[@LINE-1]]:10: warning: enum value of type 'Enum1' initialized with invalid value of 0
// CHECK-NOTES: :9:12: note: enum is defined here
// CHECK-NOTES: :[[@LINE-3]]:10: warning: enum value of type 'Enum2' initialized with invalid value of 0
// CHECK-NOTES: :14:6: note: enum is defined here
S4 VarS4{};
// CHECK-NOTES: :[[@LINE-1]]:10: warning: enum value of type 'Enum1' initialized with invalid value of 0
// CHECK-NOTES: :9:12: note: enum is defined here
// CHECK-NOTES: :[[@LINE-3]]:10: warning: enum value of type 'Enum2' initialized with invalid value of 0
// CHECK-NOTES: :14:6: note: enum is defined here
S5 VarS5{};
// CHECK-NOTES: :[[@LINE-1]]:10: warning: enum value of type 'Enum1' initialized with invalid value of 0
// CHECK-NOTES: :9:12: note: enum is defined here
enum class EnumFwd;
EnumFwd Fwd{};
enum class EnumEmpty {};
EnumEmpty Empty{};
template<typename T>
struct Templ {
T Mem1{};
// CHECK-NOTES: :[[@LINE-1]]:9: warning: enum value of type 'Enum1' initialized with invalid value of 0
// CHECK-NOTES: :9:12: note: enum is defined here
};
Templ<Enum1> TemplVar;
enum MyEnum {
A = 1,
B
};
MyEnum MyEnumVar{};
// CHECK-NOTES-DEFAULT: :[[@LINE-1]]:17: warning: enum value of type 'MyEnum' initialized with invalid value of 0, enum doesn't have a zero-value enumerator
// CHECK-NOTES-DEFAULT: :148:6: note: enum is defined here
namespace std {
enum errc {
A = 1,
B
};
}
std::errc err{};
|
