C + + operator overloading

1, the operator operator represents the operator overload, and the operator is the function name.

2, the class of the container class all need to overload =, = = and < operators, for sorting or copying elements.

3, cannot reload ".", Dereference class member pointer ". *", Scope resolver "::", ternary operator "?:", sizeof (), typeid (), type conversion character static_cast<>, Dynamic_cast<> Const_cast<>, reinterpret_cast<> and preprocessor "#".

4, + + reload:

Class Integer

{

Public

Integer (int para) {m_data = para;}

Integer operator++ ()//Pre-build, add first, return value after

{

m_data++;

return *this;

}

　　

Integer operator++ (int)//post-build, first self-add, return previous value, int type parameter as flag, dummy parameter.

{

Integer temp = *this;

m_data++;

return temp;

}

Private

int m_data;

};

C + + operator overloading