----- Original Message ----- From: Hugh Sasse Staff Elec Eng <hgs / dmu.ac.uk> To: ruby-talk ML <ruby-talk / ruby-lang.org>; <ruby-talk / netlab.co.jp> Sent: Wednesday, July 11, 2001 10:09 AM Subject: [ruby-talk:17656] Old chestnut: invariants, pre/post conditions and so on [snip snip snip] My take on it is this: I think DBC is nontrivial to implement in *any* language, but is probably easier in a dynamic one. There are a couple of existing DBC implementations... sorry I don't have pointers to them handy. Just look around. Search RAA and if they're not both there, search the mailing list. Hal