C / C++ / MFC

class CBase {
    static int m_iCounter;
 
public:
    CBase() {
        m_iCounter++;
    }

    virtual ~CBase() {
        m_iCounter--;
    }
};
 
class CChild : public CBase {
    //...
};

void foo() {         //Counter == 0
CChild myChild1;     //Counter == 1
CChild myChild2;     //Counter == 2
  {
    CCHild myChild3; //Counter == 3
  }                  //Counter == 2
myChild1.~CChild();  //Counter == 1
}                    //Counter == 0

class Base
{
protected:
   static int counter;

public:
    Base() { counter++; }
};

int Base::counter;

class Derived : Base
{
public:
   Derived()
   {
       counter--;
   }   
}; 

char arr[20] = "Senthil";
arr[5] = "Kumar";

CString str = "40";
array[18] = atoi(str);

"One must learn from the bite of the fire to leave it alone." - Native American Proverb

char array[20] = "Supernatural";
...
char array[20];
strcpy(array, "Supernatural");

"One must learn from the bite of the fire to leave it alone." - Native American Proverb

"One must learn from the bite of the fire to leave it alone." - Native American Proverb

vtValue = t_Rec->Fields->GetItem("NUMBER")->GetValue();
vtValue.ChangeType(VT_BSTR);
str2 = (LPTSTR)((_bstr_t)vtValue.bstrVal);
char x;
x = atoi(str2);
str.GetAt(18, str2);   ///Debug Assertion Failed

"One must learn from the bite of the fire to leave it alone." - Native American Proverb