blob: 86612d5283f0c88fd6d77519a8c3d82a2c139b95 (
plain)
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
|
/* PR 35635 */
/* { dg-do compile } */
/* { dg-options "-Wconversion -Wsign-conversion" } */
struct unsigned_bit {
unsigned int x:1;
} unsigned_bit;
struct signed_bit {
int x:1;
} signed_bit;
int bar;
int bar2;
void func1()
{
/* The result of boolean operators fits in unsiged int:1, thus do
not warn. */
unsigned_bit.x = (bar != 0); /* { dg-bogus "conversion" } */
unsigned_bit.x = (bar == 0); /* { dg-bogus "conversion" } */
unsigned_bit.x = (bar <= 0); /* { dg-bogus "conversion" } */
unsigned_bit.x = (bar >= 0); /* { dg-bogus "conversion" } */
unsigned_bit.x = (bar < 0); /* { dg-bogus "conversion" } */
unsigned_bit.x = (bar > 0); /* { dg-bogus "conversion" } */
unsigned_bit.x = !bar; /* { dg-bogus "conversion" } */
unsigned_bit.x = (bar || bar2); /* { dg-bogus "conversion" } */
unsigned_bit.x = (bar && bar2); /* { dg-bogus "conversion" } */
/* Both branches of ? fit in the destination, thus do not warn. */
unsigned_bit.x = bar != 0 ? 1 : 0; /* { dg-bogus "conversion" } */
unsigned_bit.x = bar != 0 ? 1.0 : 0.0; /* { dg-bogus "conversion" } */
/* At least one branch of ? does not fit in the destination, thus
warn. */
unsigned_bit.x = bar != 0 ? 2 : 0; /* { dg-warning "conversion" } */
unsigned_bit.x = bar != 0 ? 0 : -1; /* { dg-warning "negative integer implicitly converted to unsigned type" } */
}
void func2()
{
signed char schar_x;
/* Both branches of ? fit in the destination, thus do not warn. */
schar_x = bar != 0 ? 1 : 0; /* { dg-bogus "conversion" } */
schar_x = bar != 0 ? 2.0 : 10; /* { dg-bogus "conversion" } */
/* At least one branch of ? does not fit in the destination, thus
warn. */
schar_x = bar != 0 ? 2.1 : 10; /* { dg-warning "conversion" } */
schar_x = bar != 0 ? (signed char) 1024: -1024; /* { dg-warning "conversion" } */
}
void func3()
{
unsigned char uchar_x;
/* Both branches of ? fit in the destination, thus do not warn. */
uchar_x = bar != 0 ? 1 : 0;
uchar_x = bar != 0 ? 2.0 : 10;
/* At least one branch of ? does not fit in the destination, thus
warn. */
uchar_x = bar != 0 ? 2.1 : 10; /* { dg-warning "conversion" } */
uchar_x = bar != 0 /* { dg-warning "negative integer implicitly converted to unsigned type" } */
? (unsigned char) 1024
: -1;
}
void func4()
{
signed_bit.x = -1; /* { dg-bogus "conversion" } */
signed_bit.x = bar != 0 ? -1.0 : 0.0; /* { dg-bogus "conversion" } */
signed_bit.x = bar != 0 ? -1 : 0; /* { dg-bogus "conversion" } */
signed_bit.x = 1; /* { dg-warning "conversion" } */
signed_bit.x = (bar != 0); /* { dg-warning "conversion" } */
signed_bit.x = (bar == 0); /* { dg-warning "conversion" } */
signed_bit.x = (bar <= 0); /* { dg-warning "conversion" } */
signed_bit.x = (bar >= 0); /* { dg-warning "conversion" } */
signed_bit.x = (bar < 0); /* { dg-warning "conversion" } */
signed_bit.x = (bar > 0); /* { dg-warning "conversion" } */
signed_bit.x = !bar; /* { dg-warning "conversion" } */
signed_bit.x = (bar || bar2); /* { dg-warning "conversion" } */
signed_bit.x = (bar && bar2); /* { dg-warning "conversion" } */
signed_bit.x = bar != 0 ? 1 : 0; /* { dg-warning "conversion" } */
signed_bit.x = bar != 0 ? 2 : 0; /* { dg-warning "conversion" } */
}
|
