Various C++ Codes

out.cpp

#include <ostream>
#include <string>

namespace dts {
    void whisper(std::ostream &out, std::string msg) {
        for(char &next : msg) {
            out << ((next >= 'A' && next <= 'Z') ? (next - ('Z' - 'z')) : next);
        }
    }
    
    void shout(std::ostream &out, std::string msg) {
        for(char &next : msg) {
            out << ((next >= 'a' && next <= 'z') ? (next + ('Z' - 'z')) : next);
        }
    }
}

rbstr.cpp

#include <string>

std::string operator*(std::string raw, int mult) {
    return --mult != 0 ? raw + raw * mult : raw;
}

// can now use like this: std::string("foo") * 5, which produces "foofoofoofoofoo"