C++17 STL Cookbook

How to do it...

In this section, we are going to use std::transform in order to modify the items of a vector while copying them:

1. As always, we first need to include all the necessary headers and to spare us some typing, we declare that we use the std namespace:

       #include <iostream>       #include <vector>       #include <string>       #include <sstream>       #include <algorithm>       #include <iterator>              using namespace std;

2. A vector with some simple integers will do the job as an example source data structure:

       int main()       {           vector<int> v {1, 2, 3, 4, 5};

3. Now, we copy all the items to an ostream_iterator adapter in order to print them. The transform function accepts a function object, which accepts items of the container payload type and transforms them during ...