Two's Complement

Ben Rady and Matt Godbolt•www.twoscomplement.org

If you come to a fork in the road, take it! Two’s Complement is a programming podcast, hosted by Matt Godbolt and Ben Rady; two programmers who both grew up wanting to make video games. One of them did, one of them didn’t, but now they both work together despite coming from very different backgrounds.

Last refreshed: February 15th, 2026 at 12:44 PM ⓘ

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Episodes

Slow Builds and Fast Feedback

Ben and Matt talk about builds and build systems, mostly in C++. Matt talks about lots of different ways to speed up builds for C++, and is very helpful. Ben questions whether you want a build that never fails, which is moderately helpful.

Apr 06, 2021•51 min

Semi-Solid Principles

Matt and Ben join an argument on the Internet, which is always a productive and rewarding use of one's time. They discuss the SOLID principles from two different perspectives, and judge them. Listen in for the verdict. Then, Ben ponders how programmers learn, and whether sailors are happy. Matt gets a new puppy.

Mar 24, 2021•45 min

Reverse Engineering the 6502

Ben and Matt stop talking about testing, and everyone is relieved. Matt describes the process for reverse engineering microchips by stripping off layers of silicon to look at the transistors with a microscope. With this forbidden knowledge, he explains how to defeat the copy protection on a childhood video game. Ben pretends like he understands.

Mar 02, 2021•47 min

Special Guest: Clare Macrae

Ben and Matt trick another live human being into joining them on the podcast. Clare Macrae joins to talk about her work with approval testing, her experiences dealing with legacy Fortran and C++ code, and an upcoming Webinar she's doing on refactoring-to-testability using CLion.

Feb 04, 2021•48 min

Manual Testing and Observability

Matt and Ben discuss whether the city of Portland exists, and decide they don't care. Ben argues that you should test your code manually. Matt talks about when government regulators made him build an observable system, and how great it was. Really, it was great!

Jan 26, 2021

Special Guest: James Grenning

Our first guest! We speak with James Grenning about his work (re)building embedded systems using Test Driven Development. Then we ask James about his involvement with the creation of the Agile Manifesto in Feburary of 2001, and find out how 'Agile' has changed over the last 20 years.

Jan 13, 2021

Testing in C++

Matt and Ben talk about the eXtreme Programming engineering practices, such as Test Driven Development, and how to apply them in C++. Matt tests a widget and some grommets. Ben complains about slow build times.

Jan 07, 2021

Episode 0 - The Origin Story

Matt and Ben talk about how their careers were on the same path in the late 90's, but then diverged at a critical juncture. Then they talk about automated testing. Ben gets out his soapbox. Matt is a kind, patient soul.

Dec 24, 2020

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