cppreference.com > C++ I/O > get
get
Syntax:
  int get();
  istream &get( char &ch );
  istream &get( char *buffer, streamsize num );
  istream &get( char *buffer, streamsize num, char delim );
  istream &get( streambuf &buffer );
  istream &get( streambuf &buffer, char delim );

The get() function is used with input streams, and either:

For example, the following code displays the contents of a file called temp.txt, character by character:

   char ch;
   ifstream fin( "temp.txt" );
   while( fin.get(ch) )
     cout << ch;
   fin.close();