    # File lib/amalgalite/sqlite3/constants.rb, line 27
          def value_from_name( name )
            unless defined? @const_map_from_name
              @const_map_from_name = {}
              constants.each do |const_name|
                c_int = const_get( const_name )
                @const_map_from_name[ const_name.to_s ] = c_int
              end
            end
            return @const_map_from_name[ name.upcase ]
          end