All Questions
Tagged with lispcommon-lisp
15 questions
1vote
2answers
298views
Scheme's define in Common Lisp
In Common Lisp, we have to use the let form to declare a new lexically-scoped variable. This means that the code either looks like that written in C89 (all variables declared on top of scope), or ...
- 19
4votes
1answer
517views
Best Practice - Where to declare variables in Common Lisp?
Generally in procedural/imperative languages, it's best practice to place variable declarations as close to usage as possible. This seems a little hazy in lisp, considering more code is used if there ...
4votes
1answer
323views
Lisp: circular structure printing through user-defined print methods: what are the requirements?
In a Lisp dialect, I've implemented ANSI-CL-like support for printing objects such that their circular and shared structure is encoded. This is enabled by the special variable *print-circle*. ...
- 3,672
8votes
2answers
2kviews
In which order should lisp functions be defined?
In which order should code in a single lisp file be organised? Is there any common style guideline that allows other lisp programmers to easily understand code? Googling for lisp style guideline ...
- 2,666
3votes
1answer
641views
What Lisp data structure to use?
I am studying different language games and trying to implement them in Common Lisp. Currently, I am studying a game which studies the relation between forms and meanings. An agent needs to store the ...
- 133
22votes
4answers
4kviews
What about LISP, if anything, makes it easier to implement macro systems?
I'm learning Scheme from the SICP and I'm getting the impression that a big part of what makes Scheme and, even more so, LISP special is the macro system. But, since macros are expanded at compile-...
6votes
1answer
3kviews
`values` vs `list` for returning multiple values from Lisp form
What's the difference between using (values …) versus (list …) (or literally '(one two three …)) to return multiple values from a lambda (or other implicit progn)? Does it create some special glue to ...
0votes
3answers
2kviews
Reference counting & GC in LISP [closed]
What is the main method for reclaiming the memory in LISP? Does LISP really need garbage collection? Would not reference counts suffice? I just wanted to know whether reference counts are enough or ...
- 153
2votes
3answers
1kviews
How does a chess engine decide what move to make?
I'm writing a simple chess engine in LISP. I actually know how the engine decide the move, it evaluates and reads some opening books. But that's not what i mean. This is my design. 57 58 59 60 61 62 ...
- 129
8votes
3answers
2kviews
Multiple Dispatch and CLOS
I have never written software in Common Lisp, but in Scheme and Clojure as well as C++ and Python. Yet I have had a look at the Common Lisp Object System (CLOS) in Common Lisp and Dylan. Now when ...
- 3,048
8votes
4answers
3kviews
What makes Common Lisp "big"? [closed]
I've been learning both Common Lisp and Racket, and one thing that I consistently hear is that Racket is a much "smaller" language than Common Lisp. I was wondering what this really meant. As far as I ...
user91264
7votes
3answers
1kviews
What is the difference between a stock-hardware and a micro-coded machine in "A Critique of Common Lisp"?
I was reading this article: A Critique of Common Lisp and finding it hard to make out the precise definition of "stock-hardware machine" and its difference with "micro-coded" machines. I tried to ...
6votes
1answer
4kviews
Common Lisp Implementations - threading and multiplatform?
I'm learning Common Lisp, mostly as a "mind gym" hobby thing, but I want to end up with a set of skills that would also be usable "in real life", because when you learn a language you also accumulate ...
- 221
48votes
2answers
22kviews
Which Common Lisp implementation to use? [closed]
There seems to be an immediate problem with starting to develop in Common Lisp: choosing an implementation. What should one take into account, and how much weight should it bear when considering a CL ...
- 597
116votes
15answers
149kviews
Is LISP still useful in today's world? Which version is most used?
I try to teach myself a new programming language in regular intervals of time. Recently, I've read how Lisp and its dialects are at the complete opposite end of the spectrum from languages like C/C++, ...
