| /* Test for a bogus warning on comparison between signed and unsigned. |
| Origin: Kaveh R. Ghazi <ghazi@caip.rutgers.edu> 8/21/2001. */ |
| |
| /* { dg-do compile } */ |
| /* { dg-options "-Wsign-compare" } */ |
| |
| extern void bar(void); |
| |
| int foo(int x, int y, unsigned u) |
| { |
| /* A *_DIV_EXPR is non-negative if both operands are. */ |
| |
| if (u < ((x=-22)/33)) /* { dg-warning "different signedness" "DIV_EXPR" } */ |
| return x; |
| |
| if (u < ((x=22)/33)) |
| return x; |
| |
| if (u < ((x=22)/(y=33))) |
| return x; |
| |
| if (u < (((x&0x10000)?128:64) / ((y&0x10000)?8:4))) |
| return x; |
| |
| |
| /* A *_MOD_EXPR is non-negative if the first operand is. */ |
| |
| if (u < ((x=-22)%33)) /* { dg-warning "different signedness" "MOD_EXPR" } */ |
| return x; |
| |
| if (u < ((x=22)%-33)) |
| return x; |
| |
| if (u < ((x==y)%-33)) |
| return x; |
| |
| if (u < (((x=22)/33)%-33)) |
| return x; |
| |
| return 0; |
| } |
