Printing lists with commas C++

Question

I know how to do this in other languages, but not C++, which I am forced to use here.

I have a Set of Strings that I\'m printing to out in a list, and they need a co

Answer 1

to avoid placing an if inside the loop, I use this:

vector keywords = {1, 2, 3, 4, 5};

if (!keywords.empty())
{
    copy(keywords.begin(), std::prev(keywords.end()), 
         std::ostream_iterator (std::cout,", "));
    std::cout << keywords.back();
}

It depends on the vector type, int, but you can remove it with some helper.