Conversion Functions

C++ allows allows the creation of custom conversion functions. A conversion function converts a class into a type compatible with that of the rest of the expression. Conversion functions allow the use of an object of a class inside of an expression.

operator int()
{return nI;}

the conversion function is a method of a class like:

class a {
   public:
   int b; 
   operator int(){return(b+1);}
};

we would use this like so:

void main()
{
a aObject;
aObject.b=6;
printf(%i,aObject); //should print 7
}

It is possible to create conversion functions for converting to different types. Each conversion function will be invoked automatically depending on the type of each expression.