Returns the next character from a specified file.
    Format
      #include  <stdio.h>
      int fgetc  (FILE *file_ptr);
1 – Argument
 file_ptr
    A pointer to the file to be accessed.
2 – Description
    The fgetc function returns the next character from the specified
    file.
    Compiling with the __UNIX_PUTC macro defined enables an
    optimization that uses a faster, inlined version of this
    function.
    See also the fgetc_unlocked function and the getc macro.
3 – Return Values
    x                  The returned character.
    EOF                Indicates the end-of-file or an error.