Is the fclose() function optional or should be writen when creating single file.

Question

Understanding the using of fopen and fclose

Answer 1

Always close the files you open. As long as a file is opened, it can't be used by other programs.

Answer 2

Additional, an open file pointer to a file will stay in memory, hence earing up your RAM on large scaled projects.

Answer 3

a file opened and not being used wastes memory, close all files when not in use!!