acons | constructing N-dimensional arrays | Graphics library
kandi X-RAY | acons Summary
kandi X-RAY | acons Summary
acons is a modern C++ header-only library for constructing N-dimensional arrays. It is distributed under the MIT License.
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acons Key Features
acons Examples and Code Snippets
Community Discussions
Trending Discussions on acons
QUESTION
Anyone know whether you should be able to acons onto an empty list? I see nothing that says you can't, but on SBCL:
...ANSWER
Answered 2021-Feb-17 at 12:26acons
returns a fresh cons, it does not modify the provided association list. You can use setf
, though:
QUESTION
I made a question before, but i think that question was bad formalized so... I am facing some problems with this specific definition to prove their properties:
I have a definition of a list :
...ANSWER
Answered 2019-Mar-06 at 11:27Here list_correspondence
is a spurious Fixpoint
(i.e., fix
) (it makes no recursive calls), and this gets in the way of reduction.
You can force reduction of a fix
by destructing its decreasing argument:
QUESTION
I have been having some problems with dependent induction because a "weak hypothesis".
For example :
I have a dependent complete foldable list :
...ANSWER
Answered 2019-Mar-05 at 11:04If you do
QUESTION
From the docs:
The variable
window-system-default-frame-alist
is an alist of elements(WINDOW-SYSTEM . ALIST)
, whereWINDOW-SYSTEM
is a window system symbol andALIST
is a frame parameter alist.
Let's say I want to change the frame parameter alist for the X Window System, so that it contains the element (font . "Monospace-11")
, but I don't want multiple font
elements in that alist.
So what do I do? Basically, I go over the alists, remove the element I want to replace/add, and then add the element. This is the code:
...ANSWER
Answered 2018-Sep-30 at 20:14You can do:
QUESTION
I'm learning scheme (using guile) and I found the need to create an initial alist, with some keys and empty lists as their values. I was wondering what's the best practice when doing something like this. My goal is to keep this alist around so I can later add items to the lists. This is what I have now:
...ANSWER
Answered 2018-Jan-04 at 07:46scheme@(guile-user)> (acons 'hourly '()
(acons 'daily '()
(acons 'monthly '()
(acons 'yearly '() '()))))
$2 = ((hourly) (daily) (monthly) (yearly))
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