{fmt} test

#include <iostream>
#include <string>
#include "fmt/format.h"


int main()
{
    int hour = 17, minute = 42, second = 39;
    std::string result =
        fmt::format("Current time is {0:d}:{1:d}:{2:d}", hour, minute, second);
    std::cout << result << std::endl;
    // --> Current time is 17:42:39
}