sicp-lang/sicp

Some machine time related procedures are not provided yet

muzimuzhi opened this issue · 2 comments

Some procedures under topic "machine time", like process-time-clock and with-timings, are not provided yet, while they are listed in the MIT/GNU Scheme docs. And this fact is verified with mit-scheme, installed by brew install scheme under macOS.

I came across this issue in this blog, in which the author defines a procedure on top of with-timings to print the run/gc/actual time of a procedure.

Where in the book are these procedures mentioned?

I'm afraid they are not mentioned in the book, as I just finished chap. 1.

Maybe I have got a wrong judgement when I opened this issue, that this package aims to provide a re-implementation of the whole mit-scheme, not just a learning help to allow students finish the wizard book with DrRacket.

sorry