Simple (I hope) question about pointers
July 22, 2001 08:23 AM
Hi,
Can someone tell me how I can find out the pointer to an object from within that object''s constructor? So...:
// Constructor for ''Object'' class
Object::Object(void)
{
Object * PointerToMe = ???;
}
Thanks!
Rottbott
122
July 22, 2001 08:42 AM
class Object
{
private:
Object *oInstance;
public:
Object(void);
};
Object::Object(void)
{
Object *oInstance = this;
}
A class definition has one set of methods used for all instances of that class. So in order to differentiate between instances an invisible pointer known as this stores the invoking object. So pretend I do this:
int main(void)
{
Object oMain;
return 0;
}
oMain is invoking the constructor, so it's constructor will take this (referring to oMain), and assign it to oInstance pointer. Hope this helped. Good luck.
Edited by - sympathy on July 22, 2001 9:43:34 AM
{
private:
Object *oInstance;
public:
Object(void);
};
Object::Object(void)
{
Object *oInstance = this;
}
A class definition has one set of methods used for all instances of that class. So in order to differentiate between instances an invisible pointer known as this stores the invoking object. So pretend I do this:
int main(void)
{
Object oMain;
return 0;
}
oMain is invoking the constructor, so it's constructor will take this (referring to oMain), and assign it to oInstance pointer. Hope this helped. Good luck.
Edited by - sympathy on July 22, 2001 9:43:34 AM
"The time has come", the Walrus said, "To speak of many things."
July 22, 2001 09:41 AM
Excellent, thanks, I think I''ve got it working 
. Thanks again!
Rottbott
. Thanks again! Rottbott
This topic is closed to new replies.
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