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Xkcd Password Generator
The button below will generate a random phrase consisting of four common words. According to yesterday’s xkcd strip, such phrases are hard to guess (even by brute force), …
Jeff Preshing
C is a simple language. You’re only allowed to have one function with each name. C++, on the other hand, gives you much more flexibility: You can have multiple functions …
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How C++ Resolves a Function Call
C is a simple language. You’re only allowed to have one function with each name. C++, on the other hand, gives you much more flexibility: You can have multiple functions …
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This Is Why They Call It a Weakly-Ordered CPU
On this blog, I’ve been rambling on about lock-free programming subjects such as acquire and release semantics and weakly-ordered CPUs. I’ve tried to make these …
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Plywood: A New Cross-Platform Open Source C++ Framework
For the past little while – OK, long while – I’ve been working on a custom game engine in C++. Today, I’m releasing part of that game engine as an open …
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An Introduction to Lock-Free Programming (2012)
Lock-free programming is a challenge, not just because of the complexity of the task itself, but because of how difficult it can be to penetrate the subject in the first place. I …
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What Is a Bitcoin, Really?
When I first started learning about Bitcoin, I found plenty of information, but nothing that directly answered the most burning question: When you buy bitcoins… what is it …
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Memory Reordering Caught in the Act
When writing lock-free code in C or C++, one must often take special care to enforce correct memory ordering. Otherwise, surprising things can happen. Intel lists several such …
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C++ Has Become More Pythonic (2014)
C++ has changed a lot in recent years. The last two revisions, C++11 and C++14, introduce so many new features that, in the words of Bjarne Stroustrup, “It feels like a new …
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A resizable concurrent map
In an earlier post, I showed how to implement the “world’s simplest lock-free hash table” in C++. It was so simple that you couldn’t even delete entries or …
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High-Resolution Mandelbrot in Obfuscated Python
Here’s a followup to last month’s post about Penrose Tiling in Obfuscated Python. The Mandelbrot set is a traditional favorite among authors of obfuscated code. You …