| /* Test compatibility of prototyped function types with and without arguments |
| (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" } */ |
| |
| void f2 (float); /* { dg-message "previous declaration" } */ |
| void f2 (); /* { dg-error "conflicting types" } */ |
| |
| void f3 (); /* { dg-message "previous declaration" } */ |
| void f3 (char); /* { dg-error "conflicting types" } */ |
| |
| void f4 (char); /* { dg-message "previous declaration" } */ |
| void f4 (); /* { dg-error "conflicting types" } */ |
| |
| /* Built-in function case. */ |
| float sqrtf (); /* { dg-warning "conflicting types for built-in function" } */ |
