| /* 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 "-Wsign-conversion" } */ |
| } |
| |
| 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 "-Wsign-conversion" } */ |
| ? (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" } */ |
| } |
| |