5 #include <boost/concept_check.hpp> 
   33         const int value  = 
eval.value();
 
   34         boost::ignore_unused_variable_warning(value);
 
   35         const int infty = T::infty();
 
   36         boost::ignore_unused_variable_warning(infty);
 
   37         const int capture_val = T::captureValue(
ptypeo);
 
   38         boost::ignore_unused_variable_warning(capture_val);