C++11 
                            Alex Sinyakov,  
                    Software Engineer at AMC Bridge  
                         Twitter: @innochenti 
                     E-mail: innochenti@gmail.com 
                                  
                    PDF Slides: http://j.mp/cpp11ref 
                                  
        null pointer constant 
  C++03 
  void foo(char*);  
  void foo(int); 
   
  foo(NULL);  
   
   
   
   
   
   
                   null pointer constant 
     C++03                               C++11 
     void foo(char*);                    void foo(char*);  
     void foo(int);                      void foo(int); 
                                          
     foo(NULL); //calls second foo       foo(nullptr); //calls first foo 
                                          
                                          
                                          
                                          
                                          
                                          
                                          
             standard types 
   C++03 
   sizeof(int) == ? 
   sizeof(char) == 1 byte(== ? bits) 
    
   sizeof(char) <= sizeof(short) <= 
   sizeof(int) <= sizeof(long)