Archives
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Secrets of the Grey Beards: drawing circles with additions and shifts
A long time ago, before GPUs, before multicore processors and gigabytes of RAM, clever algorithms were the only way to render complex graphics in real-time. Those algorithms are now mostly forgotten as nobody needs them or is interested in them. Nobody? Well, almost. I like to reverse-engineer the clever tricks programmers of that era were using (in fact, I was one of them), and I hope you'll follow me on this exploration.
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Use explicit Lambdas with LINQ
Here's an interesting bug... What's wrong with this code?
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A breaking change in .NET argument exception message formatting
A quick reference post about an interesting change in the way .NET formats argument exception messages. This tripped me up when debugging a test that was failing on .NET Core / 6.0 whereas it had been passing forever and still passes on .NET Framework / 4.7. The test was expecting a specific error message. Because .NET Core apparently has changed the format string used for argument exception messages, that expectation was broken.