Data Structures and Algorithms Using C++ by Pearson

2.12 | Data Structures and Algorithms Using C++

}

};

void main()

{

vector a(10,20,30),b(1,2,3),c;

clrscr();

cout<<“\nVector A:”;

a.show();

cout<<“\nVector B:”;

b.show();

c=a-b;

cout<<“\n A-B:”;

c.show();

}

Output

Vector A:10i+20j+30k

Vector B:1i+2j+3k

A-B:9i+18j+27k

In Program 2.7, the

vector

is de ned as a class with

x,y,z

as local variables. To solve the

vector

subtrac-

tion problem, the minus (

–

) operator cannot be applied on the objects of the

vector

class. By overloading the

minus operator in the

vector operator-(vector v)

form, the subtraction problem of vector can be solved.

 e return type of the operator–here is a

vector

type.

2.3.3 O