On Monday, 14 July 2014 at 18:43:36 UTC, Ali Çehreli wrote:
It is guaranteed by the language spec that yes, myFunction() takes an A by reference. However, you can't know where that A is coming from; so, the safety of that cast is up to you. Consider:

void foo(A a)         // <-- Already sliced
{
    myFunction(a);    // <-- Will perform invalid cast
}


Indeed, the code I port do that because struct have a type-tag.

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