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FSEEKO(3)		   Linux Programmer's Manual		     FSEEKO(3)

NAME
       fseeko, ftello -	seek to	or report file position

SYNOPSIS
       #include	<stdio.h>

       int fseeko(FILE *stream,	off_t offset, int whence);

       off_t ftello(FILE *stream);

   Feature Test	Macro Requirements for glibc (see feature_test_macros(7)):

       fseeko(), ftello():
	   _FILE_OFFSET_BITS ==	64 || _POSIX_C_SOURCE >= 200112L ||
	   _XOPEN_SOURCE >= 600
	   (defining the obsolete _LARGEFILE_SOURCE macro also works)

DESCRIPTION
       The fseeko() and	ftello()  functions  are  identical  to	 fseek(3)  and
       ftell(3)	 (see fseek(3)), respectively, except that the offset argument
       of fseeko() and the return value	of ftello() is of type	off_t  instead
       of long.

       On some architectures, both off_t and long are 32-bit types, but	defin-
       ing _FILE_OFFSET_BITS with the value 64 (before	including  any	header
       files) will turn	off_t into a 64-bit type.

RETURN VALUE
       On  successful  completion,  fseeko() returns 0,	while ftello() returns
       the current offset.  Otherwise, -1 is returned and errno	is set to  in-
       dicate the error.

ERRORS
       See the ERRORS in fseek(3).

VERSIONS
       These functions are available under glibc since version 2.1.

CONFORMING TO
       SUSv2, POSIX.1-2001.

NOTES
       These functions are found on System V-like systems.

SEE ALSO
       fseek(3)

COLOPHON
       This  page  is  part of release 3.74 of the Linux man-pages project.  A
       description of the project, information about reporting bugs,  and  the
       latest	  version     of     this    page,    can    be	   found    at
       http://www.kernel.org/doc/man-pages/.

				  2014-10-02			     FSEEKO(3)

NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | ERRORS | VERSIONS | CONFORMING TO | NOTES | SEE ALSO | COLOPHON

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