Beautiful Branchless Binary Search
I read a blog post by Alex Muscar, “Beautiful Binary Search in D“. It describes a binary search called “Shar’s algorithm”. I’d never heard of it and it’s impossible to google, but looking at the algorithm I couldn’t help but think “this is branchless.” And who knew that there could be a branchless binary search? So I did the work to translate it into a algorithm for C++ iterators, no longer requir
Using TLA+ in the Real World to Understand a Glibc Bug
Using TLA+ in the Real World to Understand a Glibc Bug by Malte Skarupke TLA+ is a formal specification language that you can use to verify programs. It’s different from other formal verification systems in that it’s very pragmatic. Instead of writing proofs, it works using the simple method of running all possible executions of a program. You can write assertions and if they’re not true for any p
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