Hello UB-Experts,

as far as I can see the following (static_cast) is UB:

struct B {
  int i;
};

struct D : B {
  void foo() { /* access B::i */ }
};

B b;
static_cast<D&>(b).foo();

because of [expr.static.cast] clause 11

first question: is my assessment of the situation correct or is this use legal?
if it is not (legal): could we make it legal or would we run afoul of the aliasing rules?

best regards

Fabio

--
Fabio Fracassi | ffracassi_at_[hidden]<mailto:ffracassi_at_[hidden]>
Software Engineer
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