Class and <vector>

Let's say I have the following code:

Code:

---

class myClass {
  private:
    int x, y;
  public:
    myClass();
    myClass(int t_x, int t_y) { x = t_x; y = t_y; }
  ~myClass();
};

myClass aClass;
vector<myClass> vClass;

---

Ok, now here's what I am trying to accomplish. I have this loop with a keypress condition check. When the user presses the key, I want to push_back an entry to vClass with a set x and y value. The closest I got was a miserable crash with no error message when I pushed the key.

No need to worry about the key condition stuff since I got that taken care of already. I just need some help on how to manage with the vector as described.

Something like this, but of course it does not work:

Code:

---

vClass.push_back(aClass(2, 4))

---

If this could done more efficiently, great.

Thanks.

This should work:

Code:

---

vClass.push_back(myClass(2, 4));

---

>vClass.push_back(aClass(2, 4))
aClass is an object, not a class. When you do this, the compiler searches for an overloaded () operator because you are effectively trying to call an object as a function. Because you don't have operator() in your class definition, it won't work. I think you really want to create a new object and store it in the vector, so you would want to call a constructor instead:

Code:

---

vClass.push_back(myClass(2, 4));

---

Quote:

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Originally Posted by hk_mp5kpdw

This should work:

Code:

---

vClass.push_back(myClass(2, 4));

---

---

Thanks hk_mp5kpdw, worked like a charm. Thank you for the explaination Prelude, I can see why it boogered out on me now. ;)