Example Simple C++ logging (w/o C++11 or later)

test.cpp

#include <iostream>
#include <ctime>

void logMsg( const std::string& msg ) {
  time_t rawtime;
  struct tm * timeinfo;
  char buffer[80];

  time (&rawtime);
  timeinfo = localtime(&rawtime);

  strftime(buffer,80,"%Y-%m-%d %H:%M:%S",timeinfo);
  std::string str(buffer);
  std::cout << "[" << str << "]" << " ---> " << msg << std::endl;
}

int main() {
  logMsg("Here I am!");
  logMsg("Bye Bye");
  return 0;
}