'this' pointer in classes

hi.
can anyone plz tell me where the 'this' pointer points to ?
I mean :
if 'b' be a object of a class and 'f' be one of the class functions , when we write b.f() -->

"this" pointer , points to 'b'( object of a class ) or points to 'f' (function of a class ) ?
tnx

Quote:

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can anyone plz tell me where the 'this' pointer points to ?
I mean :
if 'b' be a object of a class and 'f' be one of the class functions , when we write b.f() -->

"this" pointer , points to 'b'( object of a class ) or points to 'f' (function of a class ) ?
tnx

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The "this" pointer is only applicable within a method function. In that case "this" refers to the object the method function is being called from. For example,

Code:

---

class C
{
      int x;
public:
      void f() { this->x = 40; }
};

---

and this->x refers to the variable x of some particular object of class C. What "this" points to his not determined by dynamic execution but by scope. So you can write

Code:

---

class D
{
      C c;
      int y;
public:
      void f() { c.f(); this->y = 100;  }
};
D d;
d.f();

---

and "this" in D::f's context points &d during the execution of d.f(), even though in c.f this points to &d.c