C++ survival kit

If you don't want somebody to instanciate your class, set the constructor private

Operator precedence
http://en.wikipedia.org/wiki/Operators_in_C_and_C%2B%2B#Operator_precedence

Operator overloading:

Complex Complex::operator+( Complex &other ) {
return Complex( re + other.re, im + other.im );
}

Dummy template

// ---------------------------------------
class MyPairClass
{
int pair_1;
int pair_2;
};

// ---------------------------------------
template < class T, int i > class MyTemplate
{
public:
T* testFunc(T* pl);
};

template < class T, int i >
T* MyTemplate::testFunc(T* p1) 
{
return p1;
};

// ---------------------------------------
void myTemplateFunc()
{

MyPairClass * myPairClass = new MyPairClass();
MyTemplate < MyPairClass, 2 >  myList;
myList.testFunc(myPairClass);
}

Access to class members
The default access to class members (members of a class type declared using the class keyword) is private; the default access to global struct and union members is public. For either case, the current access level can be changed using the public, private, or protected keyword.

const array size

const int maxarray = 255;
char store_char[maxarray];  // allowed in C++; not allowed in C