# File lib/rgl/connected_components.rb, line 57
57:       def handle_examine_vertex (v)
58:         @root_map[v] =  v
59:         @comp_map[v] =  -1
60:         @dfs_time    += 1
61:         @discover_time_map[v] = @dfs_time
62:         @stack.push(v)
63:       end