SRFI 155 is now in withdrawn status. Scheme, like ML, is a programming language with strict evaluation while others, like Haskell, use lazy evaluation. Scheme, however, possesses the primitives delay and force that make it possible to express lazy algorithms. Lazy evaluation does not go well in conjunction with imperative, non-functional, side-effecting code. It should, however, be applicable in a purely functional setting. This is the case for the delayed evaluation model as described in the...
