# File lib/rgl/connected_components.rb, line 47
47:       def initialize (g)
48:         super g
49:         @root_map           = {}
50:         @comp_map           = {}
51:         @discover_time_map  = {}
52:         @dfs_time           = 0
53:         @c_index            = 0
54:         @stack              = []
55:       end