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-'\" t
-.\" Copyright (c) 1990, 1991 The Regents of the University of California.
-.\" and Copyright (C) 2021 Michael Kerrisk <mtk.manpages@gmail.com>
-.\" All rights reserved.
-.\"
-.\" This code is derived from software contributed to Berkeley by
-.\" Chris Torek and the American National Standards Committee X3,
-.\" on Information Processing Systems.
-.\"
-.\" SPDX-License-Identifier: BSD-4-Clause-UC
-.\"
-.\" @(#)ferror.3 6.8 (Berkeley) 6/29/91
-.\"
-.\"
-.\" Converted for Linux, Mon Nov 29 14:24:40 1993, faith@cs.unc.edu
-.\"
-.TH ferror 3 2023-10-31 "Linux man-pages 6.7"
-.SH NAME
-clearerr, feof, ferror \- check and reset stream status
-.SH LIBRARY
-Standard C library
-.RI ( libc ", " \-lc )
-.SH SYNOPSIS
-.nf
-.B #include <stdio.h>
-.P
-.BI "void clearerr(FILE *" stream );
-.BI "int feof(FILE *" stream );
-.BI "int ferror(FILE *" stream );
-.fi
-.SH DESCRIPTION
-The function
-.BR clearerr ()
-clears the end-of-file and error indicators for the stream pointed to by
-.IR stream .
-.P
-The function
-.BR feof ()
-tests the end-of-file indicator for the stream pointed to by
-.IR stream ,
-returning nonzero if it is set.
-The end-of-file indicator can be cleared only by the function
-.BR clearerr ().
-.P
-The function
-.BR ferror ()
-tests the error indicator for the stream pointed to by
-.IR stream ,
-returning nonzero if it is set.
-The error indicator can be reset only by the
-.BR clearerr ()
-function.
-.P
-For nonlocking counterparts, see
-.BR unlocked_stdio (3).
-.SH RETURN VALUE
-The
-.BR feof ()
-function returns nonzero if the end-of-file indicator is set for
-.IR stream ;
-otherwise, it returns zero.
-.P
-The
-.BR ferror ()
-function returns nonzero if the error indicator is set for
-.IR stream ;
-otherwise, it returns zero.
-.SH ERRORS
-These functions should not fail and do not set
-.IR errno .
-.SH ATTRIBUTES
-For an explanation of the terms used in this section, see
-.BR attributes (7).
-.TS
-allbox;
-lbx lb lb
-l l l.
-Interface Attribute Value
-T{
-.na
-.nh
-.BR clearerr (),
-.BR feof (),
-.BR ferror ()
-T} Thread safety MT-Safe
-.TE
-.SH STANDARDS
-C11, POSIX.1-2008.
-.SH HISTORY
-C89, POSIX.1-2001.
-.SH NOTES
-POSIX.1-2008 specifies
-.\"https://www.austingroupbugs.net/view.php?id=401
-that these functions shall not change the value of
-.I errno
-if
-.I stream
-is valid.
-.SH CAVEATS
-Normally,
-programs should read the return value of an input function,
-such as
-.BR fgetc (3),
-before using functions of the
-.BR feof (3)
-family.
-Only when the function returned the sentinel value
-.B EOF
-it makes sense to distinguish between the end of a file or an error with
-.BR feof (3)
-or
-.BR ferror (3).
-.SH SEE ALSO
-.BR open (2),
-.BR fdopen (3),
-.BR fileno (3),
-.BR stdio (3),
-.BR unlocked_stdio (3)