C++17 STL Cookbook

How to do it...

In this section, we will read a stream of words from the standard input. All unique words are put into an std::set instance. This way we can then enumerate all unique words from the stream.

1. We will use several different STL types, for which we need to include multiple headers.

      #include <iostream>      #include <set>      #include <string>      #include <iterator>

2. In order to spare us some typing, we will declare that we are using namespace std:

      using namespace std;

3. Now we're already writing the actual program, which begins with the main function instantiating an std::set which stores strings.

      int main()      {          set<string> s;

4. The next thing to do is to get the user input. We're just reading from standard input, and do that using the ...