cpp include

include.cpp

#include <file>
//This variant is used for system header files. It searches for a file named file in a standard list of system directories.
  

#include "file"
//This variant is used for header files of your own program. It searches for a file named file first in the directory containing the current file, then in the quote directories and then the same directories used for <file>. You can prepend directories to the list of quote directories with the -iquote option