| /* Test compatibility of unprototyped and prototyped function types (C2x made |
| the case of types affected by default argument promotions compatible, before |
| removing unprototyped functions completely). Test affected usages are not |
| accepted for C2x. */ |
| /* { dg-do compile } */ |
| /* { dg-options "-std=c2x -pedantic-errors" } */ |
| |
| void f1 (); /* { dg-message "previous declaration" } */ |
| void f1 (float); /* { dg-error "conflicting types" } */ |
| /* { dg-message "default promotion" "" { target *-*-* } .-1 } */ |
| |
| void f2 (float); /* { dg-message "previous declaration" } */ |
| void f2 (); /* { dg-error "conflicting types" } */ |
| /* { dg-message "default promotion" "" { target *-*-* } .-1 } */ |
| |
| void f3 (); /* { dg-message "previous declaration" } */ |
| void f3 (char); /* { dg-error "conflicting types" } */ |
| /* { dg-message "default promotion" "" { target *-*-* } .-1 } */ |
| |
| void f4 (char); /* { dg-message "previous declaration" } */ |
| void f4 (); /* { dg-error "conflicting types" } */ |
| /* { dg-message "default promotion" "" { target *-*-* } .-1 } */ |
| |
| /* Built-in function case. */ |
| float sqrtf (); /* { dg-warning "conflicting types for built-in function" } */ |
