ferror(3S)          (C Programming Language Utilities)           ferror(3S)


   NAME
         ferror, feof, clearerr, fileno - stream status inquiries

   SYNOPSIS
         #include <stdio.h>

         int ferror (FILE *stream);

         int feof (FILE *stream);

         void clearerr (FILE *stream);

         int fileno (FILE *stream);

   DESCRIPTION
         ferror returns non-zero when an error has previously occurred reading
         from or writing to the named stream [see intro(3)], otherwise zero.

         feof returns non-zero when EOF has previously been detected reading
         the named input stream, otherwise zero.

         clearerr resets the error indicator and EOF indicator to zero on the
         named stream.

         fileno returns the integer file descriptor associated with the named
         stream; see open(2).

   SEE ALSO
         open(2), fopen(3S), stdio(3S).
























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