Functors in c++

//BISMILLAHIR RAHMANIR RAHIM

#include<bits/stdc++.h>
#define arr_size(x)   sizeof(x)/sizeof(x[0]);
#define el    '\n'
using namespace std;


class myFunctor
{

private:
    int myObject;

public:

    myFunctor (int parameterVar = 0) // constructor
    {
        myObject = parameterVar;
    }

    /* the "operator" word is a keyword which indicates this function is an
       overloaded operator function. The () following this just tells the
       compiler that () is the operator being overloaded.  */

    int operator() (int myArgument)
    {
        return myObject + myArgument;
    }

};


int main()
{

    int array[5] = {1, 2, 3, 4, 5};

    transform(array, array + 5, array, myFunctor(100));

    int sz = arr_size(array)

     for (int i =0; i< sz; i++)
     {
         cout<<array[i]<<" "<<el;
     }

    return 0;

}

Source: stackoverflow.com

Similar codes

1 vote322 views1 answer
Union of two arrays leetcode
C++
-1 vote343 views1 answer
How to rename a file in cpp
C++
1 vote375 views1 answer
C++ isalphanum
C++
0 vote337 views1 answer
Getline vs cin.getline
C++
7 votes425 views5 answers
Stoi cpp
C++
1 vote359 views1 answer
Pass c++
C++
1 vote340 views1 answer
What is difffrence between s.length() and s.size()
C++
1 vote347 views1 answer
How to get the player view point location and rotation in ue4 c++
C++
6 votes336 views2 answers
How to print double value up to 9 decimal places in c++
C++
0 vote362 views1 answer
Cpp tutorial
C++