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Command: ferror | Section: 3 | Source: UNIX v10 | File: ferror.3
FERROR(3S) FERROR(3S)
NAME
feof, ferror, clearerr, fileno - stream status inquiries
SYNOPSIS
#include <stdio.h>
int feof(stream)
FILE *stream;
int ferror(stream)
FILE *stream
int clearerr(stream)
FILE *stream
int fileno(stream)
FILE *stream;
DESCRIPTION
Feof returns non-zero if end of file has been encountered on the named
input stream, otherwise zero. After returning EOF, stdio(3) functions
will not necessarily return EOF again; feof provides a lasting indica-
tion.
Ferror returns non-zero when an error has occurred reading or writing
the named stream, otherwise zero. Unless cleared by clearerr, the er-
ror indication lasts until the stream is closed.
Clearerr resets the error indication on the named stream.
Fileno returns the integer file descriptor associated with the stream,
see open(2).
These functions are implemented as macros; they cannot be redeclared.
SEE ALSO
stdio(3)
FERROR(3S)