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-<H1><A NAME="SECTION00030000000000000000">
-<SPAN CLASS="arabic">2</SPAN> Object system implementation</A>
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-First, to get things clear, what are considered objects here are C
-structures containing a properly initialised <A NAME="426"></A>
-structure defined in <SPAN CLASS="textit">ioncore/obj.h</SPAN> as the first element (or the
-first element of the structure which is the first element and so on which
-gives rise to inheritance). The WObj structure contains a pointer
-to a WObjDescr<A NAME="428"></A> class type info structure and
-a list of so called ``watches''. The WObjDescr structure simply
-lists the class name, a table of dynamic functions and a pointer to
-deinitialisation function (or ``destructor'').
-
-<P>
-Ion does not do any reference counting, garbage collecting or other
-fancy things related to automatic safe freeing of objects with its
-simplistic object system. Instead special watches (the WWatch
-<A NAME="429"></A> structure) may be used to create safe references to
-objects that might be destroyed during the time the specific pointer is
-needed. When an object is destroyed, its list of watches is processed,
-setting the pointers in the watches to NULL and the watch handlers for
-each watch are called.
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