freenode/#lisp - IRC Chatlog

6:36:58 vtomole hmm unions or structs..

6:38:11 beach I would use a struct for each kind of object and a void* for a field that should contain some other object. And you need to include the type somehow so that you can figure that out at run-time.

6:40:03 vtomole I'll do that then. Also need to learn about unions.

6:44:11 vtomole Thanks beach

6:47:55 beach Yes, you might want a union in order to include the type.

6:50:05 vtomole How about a struct that includes the type?

6:53:23 |3b| you would either put the type in all of the structs, use a union to associate the type with all structs

6:55:20 vtomole Okay. Thanks

7:45:28 guicho hi

7:49:06 beach Hello guicho.

7:49:13 PuercoPop hi guicho

7:49:26 guicho hi, thanks

7:51:50 guicho I don't usually come here unless I beg your collective knowledge. so as expected, I have a question.

7:52:24 guicho I forgot the name of a cl project for matrix operations. it was on github. the readme stated that one of its main difference from the other libraries is that it overrides the standard operator such as *, + as a CLOS method. Could you identify this library?

7:53:25 guicho it seemed a mature and fairly large project. could not find in quickdocs.

7:55:34 PuercoPop this one? https://github.com/matlisp/matlisp

7:58:23 guicho no, not this one.

7:59:15 guicho https://gist.github.com/guicho271828/23e5d474adcd9890b9d41b622f458644 these are not what Im looking for

8:34:59 guicho I hope this is not the case that I literally *dreamed* this library ... and remembering this as if I actually saw it...

8:39:44 edgar-rft guicho: my guess is <https://common-lisp.net/project/lisplab/>

8:45:41 guicho mmm, sorry, it is not.

11:37:25 edgar-rft guicho, cl-ana provides its own versions of the basic math functions CL gives you but with the ability to extend them for whatever types you want: <https://github.com/ghollisjr/cl-ana>

11:49:45 whoman =/

11:51:09 edgar-rft whoman: equal-or-divisor?

11:51:43 whoman bitter taste

11:52:15 whoman subconsciously thinking, "CL could have already had ability to extend basic math funs if it were golden idea"

11:52:37 whoman but same with the other nice libs such as alexandria and ppcre cffi etc

11:54:57 edgar-rft I think the main problem here is that number-crunching needs all speed you can get out of any programming language. A full generic dispatch on every basic math function is way too slow for that.

12:03:40 arbv_ ** NICK arbv

12:07:47 whoman that is what i figured ~

12:26:40 guicho edgar-rft, wow, thank you that. yes this is what I was looking for. so this is why keywords like "matrix" nor "array" didn't work.