Forced type conversion in C ++

Forced type conversion in C ++

 

Example 1 define a member function in a class

Convert conver class objects to int type

# Include <iostream>

Using namespace STD;

 

Class conver
{

Public:
Int B;
Operator int () {return B;} // Note: The implementation of the function is written directly here.
};

 

Int main ()
{
Conver C;
C. B = 100;
// Printf ("% d", (INT) C );

Cout <(INT) C <Endl
Return 0;
}

 

 

Example 2 define a member function outside the class definition

Convert conver class objects to int type

# Include <iostream>

Using namespace STD;

 

Class conver
{

Public:
Int B;
Operator int (); // Note: Only the forced conversion function is declared here.
};

 

// Note: the forced conversion function is defined below

Cover: Operator int ()
{
Return B;
}

 

Int main ()
{
Conver C;
C. B = 100;
// Printf ("% d", (INT) C );
Cout <(INT) C <Endl;

Return 0;
}

 

The above two examples are compiled and run in Dev C ++ through

100 output