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[/] [openrisc/] [trunk/] [gnu-src/] [gcc-4.5.1/] [gcc/] [testsuite/] [gcc.dg/] [pr35635.c] - Rev 328
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/* 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 ? (unsigned char) 1024 : -1; /* { dg-warning "negative integer implicitly converted to unsigned type" } */ } 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" } */ }
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