object*foo(bar)有什么作用？

Question

对于某些C类:

C* a = new C();

C* b(a);  //what does it do?

C* b = a;  //is there a difference?

Answer 1

C*b(a)和C*b = a是等价的.与许多语言一样,有不止一种方法可以做到这一点......