CppCon 2016: Chandler Carruth “Garbage In, Garbage Out: Arguing about Undefined Behavior..."

Why HN readers recommended it

HN points to it whenever undefined behavior comes up, as the best explanation of the reasoning behind UB, though some dispute its framing.

This is a summary from the source dataset, not an endorsement by Hacker News or the video creator.

Video & recommendation details

Creator / channel

CppCon

Topic

undefined behavior in C++

Format

talk

Level

advanced

HN recommenders in dataset

4

HN mentions in dataset

14

Recommendation years in dataset

2016–2026

These counts and years describe the included Hacker News records; they are not YouTube views or the video’s publication date.

From the original HN conversations

Excerpts from the recorded comments. Follow each source for the full comment and surrounding discussion.

• The generally recommended thing for catching & fixing this is: [LINK] CppCon has also had a lot of great talks on UB and why it is what it is, such as [VIDEO]

• Chandler Carruth's talk on the subject was really useful for my own understanding of the reasoning behind UB: [VIDEO]

• Actually I discourage my colleague to use unsigned especially because they can overflow. The problem with overflow is that most of the time it is a program bug if there is an overflow that wasn't intended. Using signed arithmetic means that you can actually trap …