The overloaded operator[ ]( ) function returns the value of the array as indexed by the value of its parameter. : overload bracket operator « Operator Overloading « C++ Tutorial

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C++ Tutorial » Operator Overloading » overload bracket operator

10.9.3.The overloaded operator[ ]( ) function returns the value of the array as indexed by the value of its parameter.

#include <iostream>

using namespace std;

   

class MyClass {

  int a[3];

public:

  MyClass(int i, int j, int k) {

    a[0] = i;

    a[1] = j;

    a[2] = k;

  }

  int operator[](int i) { return a[i]; }

};

   

int main()

{

  MyClass ob(1, 2, 3);

   

  cout << ob[1]; // displays 2

   

  return 0;

}

10.9.overload bracket operator
	10.9.1.	Overload ( ) for Point
	10.9.2.	overloading ( ) for the loc class
	10.9.3.	The overloaded operator[ ]( ) function returns the value of the array as indexed by the value of its parameter.
	10.9.4.	design the operator[ ]( ) function in such a way that the [ ] can be used on both the left and right sides of an assignment statement.
	10.9.5.	Add a range check to for overloaded [] operator
	10.9.6.	Overload () operator for two values

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