| /* Test diagnostics for arithmetic on void and function pointers. |
| Test with no special options. */ |
| /* Origin: Joseph Myers <joseph@codesourcery.com> */ |
| /* { dg-do compile } */ |
| /* { dg-options "" } */ |
| |
| void *p; |
| void (*f)(void); |
| |
| void |
| g (void) |
| { |
| p + 0; |
| p + 1; |
| 0 + p; |
| 1 + p; |
| p - 0; |
| p - 1; |
| p += 0; |
| p += 1; |
| p -= 0; |
| p -= 1; |
| f + 0; |
| f + 1; |
| 0 + f; |
| 1 + f; |
| f - 0; |
| f - 1; |
| f += 0; |
| f += 1; |
| f -= 0; |
| f -= 1; |
| p[0]; /* { dg-warning "warning: dereferencing 'void \\*' pointer" } */ |
| 0[p]; /* { dg-warning "warning: dereferencing 'void \\*' pointer" } */ |
| f[0]; /* { dg-error "error: subscripted value is pointer to function" } */ |
| 0[f]; /* { dg-error "error: subscripted value is pointer to function" } */ |
| p - p; |
| f - f; |
| } |