Re: why Visual Studio can not optimize the initialization code?

Hello everyone,

Why Visual Studio compiler can not optimize in this case? I think this case
is almost the same as sample 1, why compiler can optimize sample 1 but can
not optimze sample 2?

(sample 2, http://msdn2.microsoft.com/en-us/library/ms364057(vs.80).aspx)

[Code]
#include <stdio.h>
class A {
  public:
    A() {printf ("A: I am in constructor\n");i = 1;}
    ~A() { printf ("A: I am in destructor\n"); i = 0;}
    A(const A& a) {printf ("A: I am in copy constructor\n"); i = a.i;}
    int i, x, w;
};
 class B {
  public:
    A a;
    B() { printf ("B: I am in constructor\n");}
    ~B() { printf ("B: I am in destructor\n");}
    B(const B& b) { printf ("B: I am in copy constructor\n");}
};
A MyMethod()
{
    B* b = new B();
    A a = b->a;
    delete b;
    return (a);
}
int main()
{
    A a;
    a = MyMethod();
}
[/Code]