generic way to print out variable name in c++

Question

given a class

struct {
  int a1;
  bool a2;
  ...
  char* a500;
  ...
  char a10000;      
}

I want to print or stream out

Answer 1

There is no way to enumerate members of the class in C++, since there is no reflection in C++. So you cannot have access to the variable name.

You could use pointers to members though...

void PrintMemberValue(int MyClass::*p, MyClass const & obj)
{
    cout << "Member has value " << obj.*p;
}

MyClass obj;
int MyClass::*p = &MyClass::a1;
PrintMemberValue(p, obj);
p = &MyClass::a2;
PrintMemberValue(p, obj);
etc