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From Java code to Java heap (2012)
The Java programming language is a high-level, object-oriented language. It is rapidly evolving across several fronts to simplify and accelerate development of modern applications.
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The Evolution of a Haskell Programmer (2001)
Some time later, I came across Iavor’s "jokes" page, including a funny bit called “ The Evolution of a Programmer ” in which the traditional imperative "Hello, world" program is developed through several variations, from simple beginnings to a ridiculously complex extreme. A moment’s thought turned up the factorial…
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Measuring GC latencies in Haskell, OCaml, Racket
James Fisher has a blog post on a case where GHC's runtime system imposed unpleasant latencies on their Haskell program: Low latency, large working set, and GHC's garbage collector: pick two of three The blog post proposes a very simple, synthetic benc...
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Introducing MLFE: ML-Flavoured Erlang
What ML-Flavoured Erlang is a statically typed language with basic parametric polymorphism (generics) for the Erlang VM that I’ve been hacking …
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Rust for Web
RESTful API in Rust, impressions
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Functors, Applicatives, and Monads in Plain English
Functors, Applicatives, and Monads in Plain English - This is a no-bullshit zone
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Rust via its Core Values
I have a couple of ideas about learning programming languages. The first is that we do it wrong. I’m sure you’ve experienced this. You try learning a new language and can’t quite see how it all works. Why do I use this syntax here and some other syntax over here? We get frustrated by all the weird bits and go back to…
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Non-Lexical Lifetimes in Rust
Over the last few weeks, I’ve been devoting my free time to fleshing out the theory behind non-lexical lifetimes (NLL). I think I’ve arrived at a pretty good point and I plan to write various posts talking about it. Before getting into the details, though, I wanted to start out with a post that lays out roughly how…
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A better inliner for OCaml, and why it matters
OCaml 4.03 is branched and a first release candidate is imminent, so it seems like a good time to take stock of what’s coming.
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Let’s Run Lisp on a Microcontroller
I was inexplicably amazed by Lisp since the first day I've seen how Lisp programs look.
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Why OCaml? [video]
Here’s a post from a talk I gave this last summer during our internship program about why we use OCaml. It spends a lot of time on how OCaml fits into the space of programming language designs, and why we think OCaml is in a real sweet spot in that design space, especially for the kind of work we do at Jane Street.
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Typed, modular macros for OCaml
As part of my OCaml Labs research project, I implemented a new macro system for OCaml, based on a design by Leo White and Jeremy Yallop [1] .
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Code behaving differently in C90, C99, C11, C++98, and C++11
There are some subtle differences between the revisions of the C standard that makes it possible to create programs that behaves differentl...
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Exponential time complexity in the Swift type checker
One of the most annoying problems in Swift is when the compiler gives an 'Expression was too complex to be solved in a reasonable time' error. I look at why this error occurs, how to avoid it and talk about how this should be solved in a future compiler update.
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Visualizing parallel requests in Elixir
Codemancers is an AI-first engineering and product studio. We design, build, and ship intelligent products — combining deep software craftsmanship with modern AI to solve real-world problems at scale.
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Red Programming Language: 0.6.0: Red GUI System
Five years ago, when I started writing the first lines of code of what would become later the Red/System compiler, I had a pretty good pictu...
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A new year resolution to have Crystal reach the 1.0 milestone in 2017
Crystal has gone a long way since we started it over five years ago. What was once an experiment to see if it was possible to have a compiled yet Ruby-like language, is now a trending language with over 7,000 GitHub stargazers and almost 1,400 shards. Its popularity has risen considerably in the last few years, and we…
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C++17 and other future highlights of C++
Welcome to the 3rd and last part about current proposals for C++17 and beyond. In the last part, there was an overview on the current Technical Specifications, most likely to move into C++ after C++17 . The full proposal listing of 2016 sorted by subgroups contains many more proposals then I can cover.
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Adventures in the land of substrings and RegExps
Few weeks ago a bug was filed against Dart SDK citing "very low performance of String.substring " . Here is a core of microbenchmark developer submitted together with the issue:
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The Next Five Years of ClojureScript
I delivered a talk at the well attended ClojuTRE conference in Tampere, Finland this past September titled "The Next Five Years of ClojureScript". The Clojur...