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ferror.3: Remove fileno(3) content that was migrated to new fileno(3) page 

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
This commit is contained in:
Michael Kerrisk 2021-02-07 10:20:08 +01:00
parent acd8a0e37e
commit 15267cb8a1
1 changed files with 3 additions and 40 deletions
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43
man3/ferror.3
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@ -39,11 +39,10 @@
.\"
.\"
.\" Converted for Linux, Mon Nov 29 14:24:40 1993, faith@cs.unc.edu
.\" Added remark on EBADF for fileno, aeb, 2001-03-22
.\"
.TH FERROR 3 2019-03-06 "" "Linux Programmer's Manual"
.SH NAME
clearerr, feof, ferror, fileno \- check and reset stream status
clearerr, feof, ferror \- check and reset stream status
.SH SYNOPSIS
.nf
.B #include <stdio.h>
@ -51,17 +50,6 @@ clearerr, feof, ferror, fileno \- check and reset stream status
.BI "void clearerr(FILE *" stream );
.BI "int feof(FILE *" stream );
.BI "int ferror(FILE *" stream );
.BI "int fileno(FILE *" stream );
.fi
.PP
.RS -4
Feature Test Macro Requirements for glibc (see
.BR feature_test_macros (7)):
.RE
.PP
.BR fileno ():
.nf
_POSIX_C_SOURCE
.fi
.SH DESCRIPTION
The function
@ -86,32 +74,11 @@ The error indicator can be reset only by the
.BR clearerr ()
function.
.PP
The function
.BR fileno ()
examines the argument
.I stream
and returns the integer file descriptor used to implement this stream.
The file descriptor is still owned by
.I stream
and will be closed when
.BR fclose (3)
is called.
Duplicate the file descriptor with
.BR dup (2)
before passing it to code that might close it.
.PP
For nonlocking counterparts, see
.BR unlocked_stdio (3).
.SH ERRORS
These functions should not fail and do not set the external variable
.IR errno .
(However, in case
.BR fileno ()
detects that its argument is not a valid stream, it must
return \-1 and set
.I errno
to
.BR EBADF .)
.SH ATTRIBUTES
For an explanation of the terms used in this section, see
.BR attributes (7).
@ -125,8 +92,7 @@ Interface Attribute Value
T{
.BR clearerr (),
.BR feof (),
.BR ferror (),
.BR fileno ()
.BR ferror ()
T} Thread safety MT-Safe
.TE
.hy
@ -139,12 +105,9 @@ The functions
and
.BR ferror ()
conform to C89, C99, POSIX.1-2001, and POSIX.1-2008.
.PP
The function
.BR fileno ()
conforms to POSIX.1-2001 and POSIX.1-2008.
.SH SEE ALSO
.BR open (2),
.BR fdopen (3),
.BR fileno (3),
.BR stdio (3),
.BR unlocked_stdio (3)