no-rtti.cpp
483 Bytes
// RUN: %clang_cc1 -fsyntax-only -verify -fno-rtti %s
namespace std {
class type_info;
}
void f()
{
(void)typeid(int); // expected-error {{use of typeid requires -frtti}}
}
namespace {
struct A {
virtual ~A(){};
};
struct B : public A {
B() : A() {}
};
}
bool isa_B(A *a) {
return dynamic_cast<B *>(a) != 0; // expected-error {{use of dynamic_cast requires -frtti}}
}
void* getMostDerived(A* a) {
// This cast does not use RTTI.
return dynamic_cast<void *>(a);
}