There is a wealth of C++ material here:
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^] but this sounds like you are asking about particular article - since there are 13,000,000+ members here and they can all write articles if they wish, you don't want to post this under Quick Answers - if you got the code from an article, then there is a "Add a Comment or Question" button at the bottom of that article, which causes an email to be sent to the author. They are then alerted that you wish to speak to them.
Posting this here relies on that specific author "dropping by" and realising it is for them.