void weak_add_ref() // nothrow { BOOST_SP_INTERLOCKED_INCREMENT( &weak_count_ ); }
void add_ref_copy() { BOOST_SP_INTERLOCKED_INCREMENT( &use_count_ ); }
void weak_add_ref() // nothrow { BOOST_SP_INTERLOCKED_INCREMENT( &weak_count_ ); }
void add_ref_copy() { BOOST_SP_INTERLOCKED_INCREMENT( &use_count_ ); }