FGETPOS(3P) POSIX Programmer's Manual FGETPOS(3P)
PROLOG
This manual page is part of the POSIX Programmer's Manual. The Linux implementation of this interface may differ (consult the correspond-
ing Linux manual page for details of Linux behavior), or the interface may not be implemented on Linux.
NAME
fgetpos -- get current file position information
SYNOPSIS
#include <stdio.h>
int fgetpos(FILE *restrict stream, fpos_t *restrict pos);
DESCRIPTION
The functionality described on this reference page is aligned with the ISO C standard. Any conflict between the requirements described here
and the ISO C standard is unintentional. This volume of POSIX.1-2008 defers to the ISO C standard.
The fgetpos() function shall store the current values of the parse state (if any) and file position indicator for the stream pointed to by
stream in the object pointed to by pos. The value stored contains unspecified information usable by fsetpos() for repositioning the stream
to its position at the time of the call to fgetpos().
The fgetpos() function shall not change the setting of errno if successful.
RETURN VALUE
Upon successful completion, fgetpos() shall return 0; otherwise, it shall return a non-zero value and set errno to indicate the error.
ERRORS
The fgetpos() function shall fail if:
EBADF The file descriptor underlying stream is not valid.
EOVERFLOW
The current value of the file position cannot be represented correctly in an object of type fpos_t.
ESPIPE The file descriptor underlying stream is associated with a pipe, FIFO, or socket.
The following sections are informative.
EXAMPLES
None.
APPLICATION USAGE
None.
RATIONALE
None.
FUTURE DIRECTIONS
None.
SEE ALSO
Section 2.5, Standard I/O Streams, fopen(), ftell(), rewind(), ungetc()
The Base Definitions volume of POSIX.1-2008, <stdio.h>
COPYRIGHT
Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2013 Edition, Standard for Information Technol-
ogy -- Portable Operating System Interface (POSIX), The Open Group Base Specifications Issue 7, Copyright (C) 2013 by the Institute of
Electrical and Electronics Engineers, Inc and The Open Group. (This is POSIX.1-2008 with the 2013 Technical Corrigendum 1 applied.) In the
event of any discrepancy between this version and the original IEEE and The Open Group Standard, the original IEEE and The Open Group Stan-
dard is the referee document. The original Standard can be obtained online at http://www.unix.org/online.html .
Any typographical or formatting errors that appear in this page are most likely to have been introduced during the conversion of the source
files to man page format. To report such errors, see https://www.kernel.org/doc/man-pages/reporting_bugs.html .
IEEE
/The Open Group 2013 FGETPOS(3P)