FCLOSE File Close Function

Section: Input/Ouput Functions

Usage

Closes a file handle, or all open file handles. The general syntax for its use is either 
  fclose(handle)

or 

  fclose('all')

In the first case a specific file is closed, In the second, all open files are closed. Note that until a file is closed the file buffers are not flushed. Returns a '0' if the close was successful and a '-1' if the close failed for some reason.

Example

A simple example of a file being opened with fopen and then closed with fclose. 
--> fp = fopen('test.dat','wb','ieee-le')

fp = 
 8 

--> fclose(fp)