bugprone-bool-pointer-implicit-conversion.cpp
1.55 KB
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
// RUN: %check_clang_tidy %s bugprone-bool-pointer-implicit-conversion %t
bool *SomeFunction();
void SomeOtherFunction(bool*);
bool F();
void G(bool);
template <typename T>
void t(T b) {
if (b) {
}
}
void foo() {
bool *b = SomeFunction();
if (b) {
// CHECK-MESSAGES: :[[@LINE-1]]:7: warning: dubious check of 'bool *' against 'nullptr'
// CHECK-FIXES: if (*b) {
}
if (F() && b) {
// CHECK-MESSAGES: :[[@LINE-1]]:14: warning: dubious check of 'bool *' against 'nullptr'
// CHECK-FIXES: if (F() && *b) {
}
// TODO: warn here.
if (b) {
G(b);
}
#define TESTMACRO if (b || F())
TESTMACRO {
}
t(b);
if (!b) {
// no-warning
}
if (SomeFunction()) {
// no-warning
}
bool *c = SomeFunction();
if (c) {
(void)c;
(void)*c; // no-warning
}
if (c) {
*c = true; // no-warning
}
if (c) {
c[0] = false; // no-warning
}
if (c) {
SomeOtherFunction(c); // no-warning
}
if (c) {
delete[] c; // no-warning
}
if (c) {
*(c) = false; // no-warning
}
struct {
bool *b;
} d = { SomeFunction() };
if (d.b) {
// CHECK-MESSAGES: :[[@LINE-1]]:7: warning: dubious check of 'bool *' against 'nullptr'
// CHECK-FIXES: if (*d.b) {
}
if (d.b) {
(void)*d.b; // no-warning
}
#define CHECK(b) \
if (b) { \
}
CHECK(c)
}
struct H {
bool *b;
void foo() const {
if (b) {
// CHECK-MESSAGES: :[[@LINE-1]]:9: warning: dubious check of 'bool *' against 'nullptr'
// CHECK-FIXES: if (*b) {
}
if (b) {
(void)*b; // no-warning
}
}
};