Template questions

[Sidro]

Im new with template and need help.I have a Class name "Data".My question is, how do I call the DoSomething
function?

void DoSomething (Data<int,int> &Direction); //prototype

void main()
{

//This is what I am using and Im not sure its right because
//I got a warning.

Data<int,int> people; //what does this mean?
DoSomething(people);


}

//DoSomething definition
void DoSomething (Data<int,int> &Direction)
{

Direction.print();


}

 

[xwb]

It would help if you told us what warning you got. Think of a template as a type. It makes your code a lot clearer.

typedef Data<int,int> MyType

void DoSomething (MyType &Direction); //prototype

void main()
{
MyType people; //what does this mean?
DoSomething(people);
}

//DoSomething definition
void DoSomething (MyType &Direction)
{
Direction.print();
}

In this case, it is a class definition that has two items which can be variable (in this case int) and that follow certain rules (eg assignment). You could equally use the same template with a mix of doubles, strings, integers etc

Data<int,double> id;

It really depends on what the Data template does.