Re: [Scheme-reports] DELAY AND FORCE

[Ray Dillinger <bear@x>]

I knew that I was not able to correctly implement DELAY and FORCE 
without running into problems; I didn't realize these problems 
were pervasive problems with the primitives, I just thought that 
I was missing some insight into methods. 

What I could and did implement without running into problems was 
lazy and eager functions as opposed to delayed and forced versus 
eager evaluations. But the semantics of mixing calls to lazy and 
eager functions can be confusing, especially when the functions 
are evaluated in the course of expanding macros. 

				Bear







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