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

Can use functors:

#include 

string getSeparatedValues(function condition, function output, string separator)
{
    string out;
    out += output();
    while (condition())
        out += separator + output();
    return out;
}

Example:

if (!keywords.empty())
{
    auto iter = keywords.begin();
    cout << getSeparatedValues([&]() { return ++iter != keywords.end(); }, [&]() { return *iter; }, ", ") << endl;
}