Conor Hoekstra
@code_report
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Research Scientist @nvidia • Content creator @youtube • Host of @adspthepodcast , @arraycast , Tacit Talk, RUN FOR THE FUN OF IT • Organizer @plvirtualmeetup
Toronto, ON
Joined February 2018
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Super excited to announce the next chapter of my career 🥳 I have officially joined
@NVIDIA
research 🍾
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It is incredible how hostile the C++ subreddit is to anything that isn't purely about C++.
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C++26 might be more beautiful than Haskell ♥️
The |> pipeline operator that
@BarryRevzin
proposes for C++26 will make this possible. No need to know that <*> is the S combinator, just pipe % twice. No locals needed either ♥️
Converting this solution from APL/BQN to Haskell makes you realize the power of:
1) Rank polymorphism
2) Treating booleans as integers
3) Combinators
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Hey
#Wordle
friends, in case you are curious - this is the distribution of letter frequency in 5 letter words 🔥
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Figured out a nice algorithm to show nested combinator trees on the command line. So cool 🥳
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I just realized that while C++,
@golang
,
@rustlang
and
@SwiftLang
all lost "market share" in 2023Q2, C is on the rise 😂
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Pretty amazing that
@cppcast
has more episodes than every
@rustlang
podcast combined. The C++ community owes
@robwirving
and
@lefticus
a huge deft of gratitude for all of their effort, especially considering almost all of their episodes involved guests (which is a ton of work).
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TIL, GCC 13 implements all of C++23 Ranges, minus ranges::to and format support. That is pretty amazing! 🔥
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Updated! Top competitive coding sites by number of ranked users!
@topcoder
@leetcode
@hackerrank
@codechef
@HackerEarth
@atcoder
@realCSAcademy
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Updated! Top competitive programming sites by number of ranked users!
@topcoder
@leetcode
@hackerrank
@codechef
@HackerEarth
@atcoder
@realCSAcademy
#competitiveprogramming
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In even bigger news than the new Carbon Language, Happy Birthday to my good friend
@blelbach
! 🎂
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Arthur Whitney for the first time ever has open sourced (under MIT license) K. This K is not the full K9 but is known as "K Junior." 4 files, 270 lines, 17K characters. You can find the zipped folder on but I have put it on GitHub:
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🚨 BREAKING NEWS 🚨: The two fastest growing languages Fortran and COBOL are now in the top 10 and top 20 respectively!
@fortranlang
#COBOL
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TIL about
@rustlang
:
1) No default function arguments
2) No function overloading
☹️
According to , you usually make separate functions:
foo(),
foo_mut(),
try_foo(),
foo_with_bar().
Coming from C++, that definitely makes me sad.
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From C ➡️ C++ ➡️ Rust (plus some Haskell)
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Category Theory in the park. The weather takes the edge off of being so confused 🙃
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Today I realized that the "permutations formula" is shorter in APL than it is in mathematics notation. This is thanks to the Φ1 (dyadic fork), Ψ (over) and KI (left) combinators that exist in APL. Truly beautiful ❤️
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How to Make Beautiful Code Presentations ♥️
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A new 🇨🇦 Canadian C++ conference 🇨🇦 was just announced premiering in July 2022!
#cpp
#cpluscplus
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Announcing (one of) my next talks,
#cpp
Concepts vs
#Haskell
Typeclasses vs
@rustlang
Traits vs
@SwiftLang
Protocols. Hoping to present at
@meetingcpp
/
@code_dive_pl
later this year (potentially virtually)
#programminglanguages
I ❤️ all PLs 🙂
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Hello! If you are a
@SwiftLang
,
@rustlang
,
#haskell
or
@D_Programming
developer && are free on Tues Nov 10, I will be giving a practice run of my
@meetingcpp
talk and would love to get feedback! I definitely don't want to misrepresent any languages 😀
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Typing out this C++ code is heartbreaking. The fact that std::plus, std::minus, etc work but std::max & std::min fail and need to be wrapped in a lambda is 💔 And if C++ algorithms were well-named/consistent this would be std::scan_copy and there would also be a std::scan 💔
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5
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Sad not to have a new
@cppcast
episode in my queue this morning 😢 I listened to every episode, some twice.
@robwirving
and
@lefticus
have been a part of my Friday mornings since February 2018. Thank you for all the effort and time you put into the podcast! You will be missed 💙
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It's
@gleamlang
by
@louispilfold
🙂 And I have to dig into this, but in some cases it might be faster than
@rustlang
and C++?
Correctly guessed by:
@KellyKMixtape
@LukasOSmith04
@fjallraver
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My "Functional vs Array Programming" talk just crossed 40k views 🔥 My fourth most viewed video of all time. If I had known referencing papers from the 1920s on combinatory logic was what the people wanted I would have done it sooner!
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Excited to be presenting my 2nd ever
@cppcon
talk () in two weeks from today on the Structure and Interpretation of Computer Programs, one of the best (if not the best) CS text books of all time 🧑🎓🎉 Looking forward to chatting with folks virtually 🙂
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MSVC's STL just merged C++23's std::views::zip 4 days ago!
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Array Languages vs
Iversonian Languages vs
Combinator Languages vs
Functional Languages
#BQN
#APL
#jlang
#Haskell
#numpy
#rlang
@JuliaLanguage
Diagram from most recent recording (to be released on Saturday) of
@arraycast
#APL
#BQN
#jlang
#arraylanguages
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Someone asked about C++ podcasts on r/cpp. Let me know if I am missing any 🙂
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Just listened to this episode. Oxide and Friends is quickly jumping to the top of my favorite podcasts list. Obective-(C|C++), Swift, C++, Rust and the Objective-C HOPL paper are all discussed 🔥 Listening to
@bcantrill
and friends is inspiring
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Carbon, a new successor language from
@chandlerc1024
,
@zygoloid
,
@gregcons
and friends presented at
@CppNorth
! The keynote recording should be released on YouTube in a few days! ❤️
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Literally laughed out loud while reading this... credit to Jake Hemstad and
@randerzander
#chatgpt
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Alright, I have cleaned it up a bit by removing some of the transitive dependencies 🥳 Looks pretty awesome!
#programminglanguages
#programming
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After seeing
@ben_deane
's "Me at 20" code tweet, I decided to take out the hard drive with my university files to see if I wrote any code in late 2010. Jackpot! I wrote this for my Risk Theory course 🤣😂🤣
#lmao
So much for "no raw loops."
#fail
#python
sighs ... still laughing
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Top competitive coding sites by number of ranked users! If you haven't heard of some of these, check them out!
@topcoder
@leetcode
@hackerrank
@codechef
@HackerEarth
@atcoder
@realCSAcademy
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TIL that the digits of x/7 fractions are permutations of each other. Is this a widely know math fact?
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I can't believe
@vector_of_bool
just went and learned BQN. This isn't a meme 😂 it is working code (context for those that missed it: )
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Literally can't believe what I just watched ... a talk from 2011 entitled: "What is Functional Programming?" by John Scholes and Roger Hui. Hui refers to combinators as ... combinators (not trains or operators) and uses lego to describe them 🤯🤯🤯
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I added Uiua to my Array Language Comparison repo. It is officially my second favorite programming language after BQN! Maybe soon to be
#1
. This language is seriously awesome!
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C++ Twitter? Have you seen in a talk or given a talk with the following code example? ⬇️ I swear I have seen this 3 or 4 times in different talks but can't find any (after checking ~10).
@ben_deane
@phil_nash
@tristanbrindle
@odinthenerd
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Three talks I've watched in the last week I would recommend:
1)
@strangeloop_stl
2023 - The Economics of Programming Languages by
@evancz
:
2)
@InfoQ
2019 - Three Things I Wish I Knew When I Started Designing Languages by
@palvaro
:
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Circle
+ blackbird (C++ combinatory logic library)
+ C++23 Ranges
= ♥️♥️♥️♥️
This example from my
@CppNorth
Twin Algorithms talk (and later
@BarryRevzin
's pipeline 🍕 operator paper) is now implemented in
@seanbax
's Circle compiler.
So. Freaking. Cool.
Sean, you are a wizard 🧙♂️
📃 Link:
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That is so beautiful. Why have I never realized you can pass reverse iterators for a second range (or any range) in 2-range
#cpp
algorithms.
@code_report
@beached_whale
@sdcppmu
@apl_language
@algo_love_club
just notices in accelerated C++ p. 105, it's just doing equal(begin, end, rbegin);
so basically does not really care about comparing the entire string :)
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Converting this solution from APL/BQN to Haskell makes you realize the power of:
1) Rank polymorphism
2) Treating booleans as integers
3) Combinators
0
2
53
Just submitted my new talk "Enter the Matrix" to
@strangeloop_stl
2022! 🤞 Fingers crossed it will be accepted. This is the talk that will explain the history of combinators & combinatory logic and how array languages have silently been the best combinator languages for 30 yrs!
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"I believe that it is the moral responsibility of long-time C++ programmers to discourage the young generation from making C++ their profession pretty much as it is the moral responsibility of alcoholics who can’t quit to warn the youth about the danger."
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Working on a website that determines
#programminglanguage
rankings by averaging other programming language ranking websites. Hopefully should be up by the end of the weekend.🥳
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Definitely my favorite diff on the
@adspthepodcast
blog GitHub repo of 2022!
@cppcast
is back!
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5
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Diagram from most recent recording (to be released on Saturday) of
@arraycast
#APL
#BQN
#jlang
#arraylanguages
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Did you know all 3 co-creators of
@golang
implemented an APL at one point? This week on
@arraycast
, we interview
@rob_pike
, co-creator of Go, UTF-8 and Plan 9 to talk about his array language inspired Ivy calculator and his thoughts on array languages! 🥳
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4
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Excited to be speaking at
@code_dive_pl
in 2 days. Will be giving a talk entitled "Beautiful Python Refactoring II", a sequel to my
@pycon
2020 talk. So far, my favorite slide is this
@rustlang
code 😁
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An awesome introductory talk to APL by
@mathsppblog
at
@FnConf
2022! Shows both
@dyalogapl
code and
#Python
code and how
#APL
can influence the way you think and code in other languages! 🥳 Extremely beautiful slides, fonts and color theme as well ❤️
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Looks like I found my first C++ compiler bug (in GCC) 🙃
✅ MSVC 19.32 - Works
♾ GCC 12.1 - Runs infinitely
❌ Clang 14.0 - Doesn't even compile
@ericniebler
@BarryRevzin
@CoderCasey
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BQN is now a ranked language 🥳 Let the leaderboard climbing begin.
Also, another July 2024 highlight is that
@gleamlang
surpassed
@elmlang
in popularity, closing in on a top 10 functional language
@code_report
Ok. It's up now. And I added BQN to the list for you, even though there's not much on it yet.
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I stand with
@pati_gallardo
.
I will no longer speak at or attend
@CppNow
or
@CppCon
until they make meaningful changes.
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lmao 😂
I read this whole article thinking ... "wtf, is this person delusional? half of these statements are just blatantly wrong" ... then I went to the reddit comments and was reminded it was April 1st 🤦♂️
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Honestly, first two days of
#AoC2023
have been pretty bad. So much unnecessary parsing. But Python's Counter collection is quite nice, and doing Counter comparisons (Part A) and a min reduction over Counters (Part B) for Day 2 is really nice 🥳
#norawloops
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Updated mini-lineage of array languages. Pretty cool that BQN, a language only created in 2020, has already inspired another array language.
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It truly is a Christmas miracle, my first
@KevlinHenney
! Merry Christmas and Happy Holidays
#cpptwitter
/
#haskelltwitter
/
#techtwitter
(and anyone else that might randomly follow me)🎅🎄☃️
@TorontoPearson
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45
I watched
@rtfeldman
's
@strangeloop_stl
2021 talk a few months ago and just realized I never tweeted about it. Definitely worth watching for
#programminglanguage
enthusiasts
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"I've been coding in Uiua for the last ... God knows how long ... I'm seeing symbols whenever I close my eyes"
😂😂
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Just submitted my
@cppnow
2020 talk submission, a talk I am calling "The Twin Algorithms." Please C++ gods - let me give this talk - I am more excited about this talk than I have been about anything else in my career.
#cpp
#cplusplus
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IEEE 2023 Programming Language Rankings are out. Interesting to see the change from 2022. Top 5 fast growing languages:
1.
@SwiftLang
2.
@dart_lang
3.
@java
🤔
4.
@golang
5.
@rustlang
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41
I have decided to give an unofficial
@strangeloop_stl
2021 virtual talk entitled "Functional vs Array Programming" this coming Saturday, October 2. Will post livestream link towards the end of the week.
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3
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Also, I apologize for my above average number of tweets 🐦 today, but this table of Greek/Latin words for describing function arity will be necessary for a future talk.
The Ê combinator is "tetradic"
Unary/Monadic
Binary/Dyadic
Ternary/Triadic
Quaternary/Tetradic
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2
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What are the odds that 8 days ago I discover the most beautiful line of code I have seen in my life (Kadane's algorithm in
#APL
*) and then I see the C++ version from
@ilpropheta
during
@italiancpp
today (I am finally getting around to watching
@SeanParent
's keynote)
#awesome
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5
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It took me less characters of code to solve the *WHOLE* TicTacToe challenge from 7L7W in APL then it did just to encode the indices array in
@scala_lang
🤦♀️
APL Solution: 83 characters
Scala Indices Array: 110 characters
Scala Solution: 808 Characters
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One of the highlights of
@NVIDIAGTC
2022 was
@science_dot
's talk comparing CUDA
#Python
, CUDA C++, CUDA
#Fortran
, CuPy, Standard C++, OpenMP, OpenACC, and so much more! If you are curious which gets you the most perf, check it out:
#cpp
#cuda
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This is amazing 😂🤣😂
#cpp
: "You're killed by the tutorial"
#javascript
@java
#haskell
#c
@kotlin
@SwiftLang
@dart_lang
#php
#perl
#assembly
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Category Theory & Combinatory Logic in the park ☀️ I have to say my enthusiasm for combinator birds 🐦 dwarfs my enthusiasm for functors and natural transformations 🙃
2
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1 Problem, 8 Programming Languages: Who Will Win?
#cpp
@rustlang
#haskell
@scala_lang
@dyalogapl
@elixirlang
#clojure
#ruby
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10
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You can find my Beautiful Python Refactoring II talk at 3h:33m of this
@code_dive_pl
YouTube stream if you don't want to wait for the polished release 🙂 I had an absolute blast at this conference!
A scrabble coach in Python.
My favorite part from
@code_report
’s presentation: so many of the things I love in
@rustlang
are in this one slide 😍
#Python
#rustlang
@code_dive_pl
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