use IO::Seekable;
package IO::Something;
@ISA = qw(IO::Seekable);
IO::Seekable does not have a constuctor of its own as 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