[問題] base class傳給derived class function
有二個問題請教
一、
class D:B
{
void foo(B const &b);
}
像上面這樣D有個interface需要吃自己的base class
什麼情況需要(適合)這樣子的設計?
二、
class A {};
class B:A {};
class C:B
{
void foo(A const &a);
}
compiler會報錯,是說private繼承只能看到上一(only one)層的class嗎
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