


lib::IO::SeekablePerl Programmers Reference lib::IO::Seekable(3p)


NAME
       IO::Seekable - supply seek based methods for I/O objects

SYNOPSIS
           use IO::Seekable;
           package IO::Something;
           @ISA = qw(IO::Seekable);


DESCRIPTION
       IO::Seekable does not have a constructor of its own as it
       is intended to be inherited by other IO::Handle based
       objects. It provides methods which allow seeking of the
       file descriptors.

       If the C functions fgetpos() and fsetpos() are available,
       then IO::File::getpos returns an opaque value that
       represents the current position of the IO::File, and
       IO::File::setpos uses that value to return to a previously
       visited position.

       See the perlfunc manpage for complete descriptions of each
       of the following supported IO::Seekable methods, which are
       just front ends for the corresponding built-in functions:

           seek
           tell


SEE ALSO
       the perlfunc manpage, the section on I/O Operators in the
       perlop manpage, the IO::Handle manpage the IO::File
       manpage

HISTORY
       Derived from FileHandle.pm by Graham Barr
       <bodg@tiuk.ti.com>




















29/Apr/1999            perl 5.005, patch 03                     1


