null pointer inheritance

[aclark17]

class employee1
{
employee1(
string _id="0",
string _name="0",
string _date="0",
string _phone="0",
string _email="0",
bool _sent=0,
string _notes="0"
):id(_id),name(_name),date(_date),phone(_phone),email(_email),sent(_sent),
notes(_notes){}

employee1(const employee1& copy)
{

name=date=phone=email=notes="0";
sent=0;
*this=copy;

}
};
class employee2:public employee1
{


employee2(employee1& copy=employee1(),
string _responsedate="0",string _application="0",string _resume="0",bool _callback=0,string _notes=0)
:responsedate(_responsedate),application(_application),resume(_resume),
callback(_callback)
{
(employee1&)*this=copy;
addnotes(_notes);
}

employee2(const employee2& copy)
{
responsedate=
application=
resume="0";
callback=0;

*this=copy;

}

}
void main()
{
employee1 e1; //ok
employee2 e2; //run time null pointer error

[ne555]

[code] "Please use code tags" [/code]

employee1(const employee1& copy)
{
  name=date=phone=email=notes="0";
  sent=0;
  *this=copy; //¿what do you think this line does?
}

Also main must return int

[aclark17]

I have overloaded that operator in code as well I refuse to belive I need to pass all the members of the base class explicitly in the ctor

[LB]

If you define your copy constructor to call itself...what do you think will happen if it keeps calling itself?

[aclark17]

i tried defining the member expmicitly within the copy ctor still null pointer

[ne555]

I guess that it will call the assignment operator. But, ¿do you realize what you are doing?
You are setting your members, and later overriding them. I would like to see your assignment operator.

However there is no need to create a trivial copy constructor. The compiler already does that.

For the other class you should do

employee2::employee2(employee1& copy,
string _responsedate,string _application,string _resume,bool _callback,string _notes):
  employee1(copy), //'construct the parent'
  responsedate(_responsedate),
  application(_application),
  resume(_resume),
  callback(_callback)
{
  //...
} 

[aclark17]

this doest solve the problem of not not being able to decalre a default employee2 e2; null pointer error

[ne555]

¿Could you please provide a minimal example that reproduces your issue?