/* Test C11 _Generic. Error cases. */ /* { dg-do compile } */ /* { dg-options "-std=c11 -pedantic-errors" } */ struct incomplete; void f (int n) { /* Multiple 'default's. */ _Generic (n, default: 1, default: 2); /* { dg-error "duplicate .*default.* case" } */ /* Variably-modified type not ok. */ _Generic (n, int[n]: 0, default: 1); /* { dg-error "variable length type" } */ /* Type must be complete. */ _Generic (n, struct incomplete: 0, default: 1); /* { dg-error "incomplete type" } */ _Generic (n, void: 0, default: 1); /* { dg-error "incomplete type" } */ /* Type must be object type. */ _Generic (n, void (void): 0, default: 1); /* { dg-error "function type" } */ /* Two compatible types in association list. */ _Generic (&n, int: 5, signed int: 7, default: 23); /* { dg-error "two compatible types" } */ /* No matching association. */ _Generic (n, void *: 5); /* { dg-error "not compatible with any association" } */ }