3 commits

Author	SHA1	Message	Date
John Wiegley	a2efee0a8e	use polymorphism, instead of templates, for walking items	2004-08-10 18:19:36 -04:00
John Wiegley	7a1d0d4614	new debug code; automated transactions now use value expression predicates	2004-08-10 17:54:47 -04:00
John Wiegley	2eccbc105a	added walk.cc	2004-08-07 21:49:28 -04:00