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

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

NAME         top

       fseeko, ftello - seek to or report file position

SYNOPSIS         top

       #include <stdio.h>

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

       off_t ftello(FILE *stream);

DESCRIPTION         top

       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         top

       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         top

       See the ERRORS in fseek(3).

CONFORMING TO         top

       SUSv2, POSIX.1-2001.

NOTES         top

       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         top

       fseek(3)

COLOPHON         top

       This page is part of release 3.23 of the Linux man-pages project.  A
       description of the project, and information about reporting bugs, can be found
       at http://www.kernel.org/doc/man-pages/.

                                      2001-11-05                            FSEEKO(3)