A summary for constructor, copy constructor and assign operator by myself ,right or ?

[flysnow]

When ,which funcition will be called ? how about priority?

eg:

 class T
{
 public :
    T( int );
   T();
};

T fun1()
{
   T t1;
  return t1;
}

void fun2(T t)
{
return ;
}

 T t;      //constructor 
 T t2 = t1 ; // copy constructor

  T t2 = 1  ; // constructor 

  t2 = t1 ;  // operator = 

  t2 = fun() ;// copy constructor and operator =

 fun2( t1) ; //copy constructor 
  

If you define operator = funciton to accept integer parameter, 
  
  t2 =  1 ; // call operator =

otherwise
  t2 = 1 ; //call constructor first and the call default operator =.

Any thing need to add ? pls give your comments ,Thanks!