+ - opt::lock_type - a lock type used in elimination back-off, default is \p cds::sync::spin
+
+ Example: declare \p %TreiberStack with elimination enabled and internal statistics
+ \code
+ typedef cds::intrusive::TreiberStack< cds::gc::HP, Foo,
+ typename cds::intrusive::treiber_stack::make_traits<
+ cds::opt::enable_elimination< true >,
+ cds::opt::stat< cds::intrusive::treiber_stack::stat<> >
+ >::type
+ > myStack;
+ \endcode