bind(3)               LPC Library Functions               bind(3)

NAME
     bind() - change the owner of a function pointer

SYNOPSIS
     function bind(function f, object ob)

DESCRIPTION
     Returns a function pointer that is exactly the  same  as  f,
     but  belongs  to  the object 'ob' instead of the object that
     created f.  Useful if the  creator  of  'f'  has  been  des-
     tructed, or f is an efun pointer to an efun which does some-
     thing to 'this_object'.

     For example:

     void make_living(object ob) {
        function f;

        f = bind( (: enable_commands :), ob );

        evaluate(f); }

     The effect of the above is the same as if  'ob'  itself  had
     evaluated  the  enable_commands() efun.  Note that there are
     security risks involved in this, as  bind()  allows  you  to
     force  another  object  to  run a piece of code.  To protect
     against this, there is a  valid_bind()  master  apply  which
     must return 1 or the call to bind() will fail.

MudOS               Last change: 22 Jan 1995                    1