// https://godbolt.org/z/o359TThMj
#include <iostream>
#include <string>
#include <chrono>
#include <complex>
using std::cout;
int main() {
{ using namespace std;
cout << "string"s << "\n"; // string
cout << (1.2+3.4i) << "\n"; // complex
}
{ using namespace std::chrono;
cout << (35ms).count() << "ms\n"; // chrono
}
{ using namespace std::literals;
cout << (41s).count() << "ms\n"; // chrono seconds
cout << "text"s << "\n"; // string
}
{ using namespace std::chrono;
cout << (4h).count() << "h\n"; // chrono hours
}
{ using namespace std::literals::chrono_literals;
cout << (16min).count() << "min\n"; // chrono minutes
}
{ using std::literals::string_literals::operator""s;
cout << "buchstaben"s << "\n"; // string
}
}