Function main

05.29-stdFmtCustomLogger2/main.cpp:80–90

}

int main()
{
  const std::string share{"Amazon"};
  const double      price{3'117.02};

  log(
    LogLevel::Info, "Share price", share, "very high:", price);

  errno = 4;
  log(LogLevel::Error, "Unknown stock, errno:", errno);
}