=====ferror=====
Syntax:

<code>
    #include <cstdio>
    int ferror( FILE *stream );
</code>
The ferror() function looks for errors with stream, returning zero if no errors
have occured, and non-zero if there is an error. In case of an error, use
perror() to determine which error has occured.

Related Topics: [[clearerr]], [[feof]], [[perror]]