C++ Program to Demonstrate Using Binary Arithmetic Function Object

This C++ program demonstrates using binary arithmetic function object. Tbe program creates two vectors with integer elements and adds them using ‘plus’ function object which is passed as a parameter to the transform algorithm which adds the corresponding elements and stores the sum in the third vector.

Here is the source code of the C++ program which demonstrates using binary arithmetic function object. The C++ program is successfully compiled and run on a Linux system. The program output is also shown below.

```
/*
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 * C++ Program to demonstrate using binary arithmetic function objects

```
 */
```
```
#include <iostream>
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```
#include <algorithm>
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#include <vector>
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#include <functional>
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#include <iterator>
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#include <iomanip>
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using namespace std;
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```
 
```
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typedef const vector <int>& vecref;
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```
 
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void print(vecref a, vecref b, vecref c)

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{
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    cout << "a[i]  b[i]  c[i]" << endl;

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    for(int i = 0; i < a.size(); i++)
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```
    {
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        cout << setw(2) << setfill(' ') << a[i] << "  +  "

             << setw(1) << setfill(' ') << b[i] << "  =  "

             << setw(1) << setfill(' ') << c[i] << endl;

```
    }
```
```
}
```
```
 
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int main()
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```
{
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    vector <int> a(10), b(10), c(10);
```
```
 
```
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    for (int i = 0; i < 10 ;i++)
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```
    {
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        a[i] = (i % 5 + 1);
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        b[i] = (i % 4 + 1);
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    }
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    // Save the result in vector c
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    cout << "Addition using \'plus\' arithmetic function object"

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         << endl;
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    transform(a.begin(), a.end(), b.begin(), c.begin(), plus <int>());

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    print(a, b, c);
```
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}
```

$ a.out
Addition using 'plus' arithmetic function object
a[i]  b[i]  c[i]
 1  +  1  =  2
 2  +  2  =  4
 3  +  3  =  6
 4  +  4  =  8
 5  +  1  =  6
 1  +  2  =  3
 2  +  3  =  5
 3  +  4  =  7
 4  +  1  =  5
 5  +  2  =  7

Sanfoundry Global Education & Learning Series – 1000 C++ Programs.

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