C++ file handling

Question

In C++
FILE *fp;
fp=fopen("NOTES.TXT","r+");
Which Operation can be performed?
a) read b) write c)appending d) read & write

Answer 1

The statement --
   fp=fopen("NOTES.TXT","r+");

uses fopen:

 

      fopen(

        const char *filename,

        const char *mode

      );

 

and the parameters are:

    filename     -    file name

    mode       -   kind of access that's enabled

 

Here, the mode is "r+" which means:

   Opens for both reading and writing. The file must exist.