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Obsolete Pointer Functions
==========================
.. hoc:function:: this_node
Syntax:
``this_node(x)``
Description:
Return a pointer (coded as a double) to the segment
of the currently accessed section that
contains location *x*. If you wish to compute a segment number
index where 1 is the first nonzero area segment and nseg is the last
nonzero area segment
of the currently accessed section corresponding to position x use the
hoc function
.. code-block::
none
func segnum() {
if ($1 <= 0) {
return 0
}else if ($1 >= 1) {
return nseg+1
}else {
return int($1*nseg + .5)
}
}
.. warning::
This function is useless and should be removed.
----
.. hoc:function:: this_section
Syntax:
``this_section(x)``
Description:
Return a pointer (coded as a double) to the section which contains location 0 of the
currently accessed section. This pointer can be used as the argument
to :hoc:func:`push_section`. Functions that return pointers coded as doubles
are unsafe with 64 bit pointers. This function has been superseded by
:hoc:class:`SectionRef`. See :hoc:meth:`~SectionRef.sec`.
|
