C++ variadic println

variadic-println1.cpp

#include <iostream>
#include <string>

namespace out {

    struct OutConf {
        std::string sep = " ";
        std::string end = "\n";
        std::ostream& file = std::cout;
        bool flush = false;
    };

    template <typename ... Args>
    void print(OutConf outConfiguration = {}, Args ... args) {
        ((outConfiguration.file << args << outConfiguration.sep), ...);
        outConfiguration.file << outConfiguration.end;

        if (outConfiguration.flush) {
            outConfiguration.file << std::flush;
        }
    }


    template <typename ... Args>
    void println(OutConf outConfiguration = {}, Args ... args) {
        ((outConfiguration.file << args << outConfiguration.sep), ...);
        outConfiguration.file << outConfiguration.end;

        if (outConfiguration.flush) {
            outConfiguration.file << std::endl;
        }
    }
}

int main()
{ 
    out::print({.sep = "abcde", .end="ooo\n", .flush=true}, 1, 2, 3, 4, 5);
    out::println({ .sep = "_" }, "abc", 2, 3, 1, 5, true);
}