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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);

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 many architectures both off_t and long are 32-bit types, but compilation with

              #define _FILE_OFFSET_BITS 64

       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 indicate the error.

ERRORS
       See the ERRORS in fseek(3).

CONFORMING TO
       SUSv2, POSIX.1-2001.

NOTES
       These  functions  are  found on System V-like systems.  They are not present in libc4, libc5, glibc 2.0 but are
       available since glibc 2.1.

SEE ALSO
       fseek(3)

COLOPHON
       This page is part of release 3.22 of the Linux man-pages project.  A description of the project,  and  informa-
       tion about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/.



                                  2001-11-05                         FSEEKO(3)