@exe_child_of(son:exe, ancestor:exe)

returns true if son is a descendent of ancestor. Both argument must refer to live exe. If one of them is not alive, is returned. Otherwise a false value is returned.

An exe is considered as a child of itself. Thus,

      @exe_child_of(ex, ex)

returns true if exis a live exe.

The child relation between the son and the ancestor is not necessarily direct: a process \(P\) that is spanned by a loop triggered by a whenever in a group \(G\) is a child of \(G\) (in pedantic terms, the child relation is the reflexive-transitive closure of the relation defined by the function @exe_parent).

See also @exe_parent, the special variables $MYSELF and $THISOBJ.

See also system related functions: @arch_darwin,    @arch_linux,    @arch_windows,    @dumpvar,    @exe_child_of,    @exe_parent,    @gnuplot,    @history_length,    @loadvalue,    @loadvar,    @plot,    @rplot,    @savevalue,    @set_osc_handling_double,    @set_osc_handling_int64,    @set_osc_handling_tab,    @specified_duration,    @string2fun,    @string2obj,    @string2proc,    @system