cpp_file_logger.cpp

// simplest file logger in c++
#include <fstream>
//#include <iostream>
static void LOG(char* message) {
  //std::cout << message << std::endl;
	std::fstream fs;
	fs.open("log.txt", std::fstream::in | std::fstream::out | std::fstream::app);
	fs << message;
	fs << "\n";
	fs.close();
}
static void LOG(std::string message) {
	LOG(message.c_str());
}
// ---
// slow
// +++
// stable