static-class-singleton.h~

#include <iostream>
#include <fstream>
#include <vector>
class Logger
{
public:
     static const std::string kLogLevelDebug;
     static const std::string kLogLevelInfo;
     static const std::string kLogLevelError;
     static void log(const std::string & kInMessage, const std::string& KInLevel);
     static void log(const std::vector < std:: string >& KInMessages,const std::string& KInLevel);
     static void teardown();
protected:
     static void teardown();
}