# File lib/rgl/base.rb, line 11
11:     def inject(*argv)
12:       argc = argv.size
13: 
14:       if argc == 0
15:         first = true
16:         result = nil
17: 
18:         each { |e|
19:           if first
20:             first = false
21:             result = e
22:           else
23:             result = yield(result, e)
24:           end
25:         }
26:       elsif argc == 1
27:         result = argv[0]
28: 
29:         each { |e| result = yield(result, e) }
30:       else
31:         raise ArgumentError, "wrong # of arguments(#{argc} for 1)"
32:       end
33: 
34:       result
35:     end