| 1 |
298 |
jeremybenn |
/* PR 35635 */
|
| 2 |
|
|
/* { dg-do compile } */
|
| 3 |
|
|
/* { dg-options "-Wconversion -Wsign-conversion" } */
|
| 4 |
|
|
|
| 5 |
|
|
struct unsigned_bit {
|
| 6 |
|
|
unsigned int x:1;
|
| 7 |
|
|
} unsigned_bit;
|
| 8 |
|
|
struct signed_bit {
|
| 9 |
|
|
int x:1;
|
| 10 |
|
|
} signed_bit;
|
| 11 |
|
|
int bar;
|
| 12 |
|
|
int bar2;
|
| 13 |
|
|
|
| 14 |
|
|
void func1()
|
| 15 |
|
|
{
|
| 16 |
|
|
/* The result of boolean operators fits in unsiged int:1, thus do
|
| 17 |
|
|
not warn. */
|
| 18 |
|
|
unsigned_bit.x = (bar != 0); /* { dg-bogus "conversion" } */
|
| 19 |
|
|
unsigned_bit.x = (bar == 0); /* { dg-bogus "conversion" } */
|
| 20 |
|
|
unsigned_bit.x = (bar <= 0); /* { dg-bogus "conversion" } */
|
| 21 |
|
|
unsigned_bit.x = (bar >= 0); /* { dg-bogus "conversion" } */
|
| 22 |
|
|
unsigned_bit.x = (bar < 0); /* { dg-bogus "conversion" } */
|
| 23 |
|
|
unsigned_bit.x = (bar > 0); /* { dg-bogus "conversion" } */
|
| 24 |
|
|
unsigned_bit.x = !bar; /* { dg-bogus "conversion" } */
|
| 25 |
|
|
unsigned_bit.x = (bar || bar2); /* { dg-bogus "conversion" } */
|
| 26 |
|
|
unsigned_bit.x = (bar && bar2); /* { dg-bogus "conversion" } */
|
| 27 |
|
|
|
| 28 |
|
|
/* Both branches of ? fit in the destination, thus do not warn. */
|
| 29 |
|
|
unsigned_bit.x = bar != 0 ? 1 : 0; /* { dg-bogus "conversion" } */
|
| 30 |
|
|
unsigned_bit.x = bar != 0 ? 1.0 : 0.0; /* { dg-bogus "conversion" } */
|
| 31 |
|
|
|
| 32 |
|
|
/* At least one branch of ? does not fit in the destination, thus
|
| 33 |
|
|
warn. */
|
| 34 |
|
|
unsigned_bit.x = bar != 0 ? 2 : 0; /* { dg-warning "conversion" } */
|
| 35 |
|
|
unsigned_bit.x = bar != 0 ? 0 : -1; /* { dg-warning "negative integer implicitly converted to unsigned type" } */
|
| 36 |
|
|
}
|
| 37 |
|
|
|
| 38 |
|
|
void func2()
|
| 39 |
|
|
{
|
| 40 |
|
|
signed char schar_x;
|
| 41 |
|
|
|
| 42 |
|
|
/* Both branches of ? fit in the destination, thus do not warn. */
|
| 43 |
|
|
schar_x = bar != 0 ? 1 : 0; /* { dg-bogus "conversion" } */
|
| 44 |
|
|
schar_x = bar != 0 ? 2.0 : 10; /* { dg-bogus "conversion" } */
|
| 45 |
|
|
|
| 46 |
|
|
/* At least one branch of ? does not fit in the destination, thus
|
| 47 |
|
|
warn. */
|
| 48 |
|
|
schar_x = bar != 0 ? 2.1 : 10; /* { dg-warning "conversion" } */
|
| 49 |
|
|
schar_x = bar != 0 ? (signed char) 1024: -1024; /* { dg-warning "conversion" } */
|
| 50 |
|
|
}
|
| 51 |
|
|
|
| 52 |
|
|
|
| 53 |
|
|
|
| 54 |
|
|
void func3()
|
| 55 |
|
|
{
|
| 56 |
|
|
unsigned char uchar_x;
|
| 57 |
|
|
|
| 58 |
|
|
/* Both branches of ? fit in the destination, thus do not warn. */
|
| 59 |
|
|
uchar_x = bar != 0 ? 1 : 0;
|
| 60 |
|
|
uchar_x = bar != 0 ? 2.0 : 10;
|
| 61 |
|
|
|
| 62 |
|
|
/* At least one branch of ? does not fit in the destination, thus
|
| 63 |
|
|
warn. */
|
| 64 |
|
|
uchar_x = bar != 0 ? 2.1 : 10; /* { dg-warning "conversion" } */
|
| 65 |
|
|
uchar_x = bar != 0
|
| 66 |
|
|
? (unsigned char) 1024
|
| 67 |
|
|
: -1; /* { dg-warning "negative integer implicitly converted to unsigned type" } */
|
| 68 |
|
|
}
|
| 69 |
|
|
|
| 70 |
|
|
void func4()
|
| 71 |
|
|
{
|
| 72 |
|
|
signed_bit.x = -1; /* { dg-bogus "conversion" } */
|
| 73 |
|
|
signed_bit.x = bar != 0 ? -1.0 : 0.0; /* { dg-bogus "conversion" } */
|
| 74 |
|
|
signed_bit.x = bar != 0 ? -1 : 0; /* { dg-bogus "conversion" } */
|
| 75 |
|
|
|
| 76 |
|
|
|
| 77 |
|
|
signed_bit.x = 1; /* { dg-warning "conversion" } */
|
| 78 |
|
|
signed_bit.x = (bar != 0); /* { dg-warning "conversion" } */
|
| 79 |
|
|
signed_bit.x = (bar == 0); /* { dg-warning "conversion" } */
|
| 80 |
|
|
signed_bit.x = (bar <= 0); /* { dg-warning "conversion" } */
|
| 81 |
|
|
signed_bit.x = (bar >= 0); /* { dg-warning "conversion" } */
|
| 82 |
|
|
signed_bit.x = (bar < 0); /* { dg-warning "conversion" } */
|
| 83 |
|
|
signed_bit.x = (bar > 0); /* { dg-warning "conversion" } */
|
| 84 |
|
|
signed_bit.x = !bar; /* { dg-warning "conversion" } */
|
| 85 |
|
|
signed_bit.x = (bar || bar2); /* { dg-warning "conversion" } */
|
| 86 |
|
|
signed_bit.x = (bar && bar2); /* { dg-warning "conversion" } */
|
| 87 |
|
|
signed_bit.x = bar != 0 ? 1 : 0; /* { dg-warning "conversion" } */
|
| 88 |
|
|
signed_bit.x = bar != 0 ? 2 : 0; /* { dg-warning "conversion" } */
|
| 89 |
|
|
}
|
| 90 |
|
|
|
