00001 #include "rgrl_invariant.h" 00002 00003 #include <vcl_cassert.h> 00004 00005 vnl_vector<double> rgrl_invariant::zero_vec = vnl_vector<double>(0); 00006 00007 rgrl_mask_box 00008 rgrl_invariant:: 00009 region() const 00010 { 00011 assert( "region() not implemented in the base class" == 0 ); 00012 return rgrl_mask_box(vnl_vector<double>(0), vnl_vector<double>(0)); // to suppress compiler warnings 00013 }