Undefined Mood — A developer tee for undefined behavior becoming a defined mood somewhere between clean types and runtime. Ships to US & Canada.

#ProgrammerTshirt #CanadianSmallBusiness #SoftwareEngineer #UndefinedBehavior

It Hurts Badly

#programming #compiler #debugging #Undefinedbehavior #Cpp

https://programmerhumor.io/cpp-memes/it-hurts-badly-9tr7

Bad Computing

#programming #computerscience #Programminghumor #Techjokes #Undefinedbehavior

https://programmerhumor.io/programming-memes/bad-computing-x0oy

😥:

“Everything In C Is Undefined Behavior”, Thomas Habets (blog.habets.se/2026/05/Ever...).

Via HN: news.ycombinator.com/item?id=4820...

On Lobsters: lobste.rs/s/dtcfd6/eve...

#Programming #C #CPP #CPlusPlus #UB #UndefinedBehavior #Standards

“C++ Standards Contributor Expelled For 'The Undefined Behavior Question'”, Slashdot (m.slashdot.org/submission/1...).

On HN: news.ycombinator.com/item?id=4222...

On /r/cpp: old.reddit.com/r/cpp/commen...

#CPP #CPlusPlus #Standards #ChatGPT #UndefinedBehavior #WTF #AntiSemitism

“C++26: Reducing Undefined Behaviour”, Sandor Dargo (www.sandordargo.com/blog/2026/07...).

Via Lobsters: lobste.rs/s/xinbkz/c_2...

#UndefinedBehavior #CPP #CPlusPlus #Programming #PLDI #Compilers

We can't say for sure, but it's quite likely. This is another textbook case of #UndefinedBehavior in C++ code. Dereferencing `std::map::end()` causes this, as this iterator points past the last element in a `std::map`.

We know, #undefinedbehavior is out of compilers' scope, but it doesn't mean that the codebase has immunity. Here's a classic UB scenario, triggered only if 'regIdx == 31'. Probably, it seems impossible or very unlikely, so the error has been unnoticed. But who knows what tomorrow will bring?

Nice 👌🏽👇🏽:

“Undefined Behavior In C And C++” [2024], Russell Wallace (russellw.github.io/undefined-be...).

Via HN: news.ycombinator.com/item?id=4484...

#UndefinedBehavior #Programming #C #CPP #Compilers #Optimization #Standards #UB

Neither #C nor a modern #CPU give timing guarantees, so this is weird:

“Clang Vs Clang”, Daniel Bernstein (blog.cr.yp.to/20240803-cla...).

On HN: news.ycombinator.com/item?id=4114...

On Lobsters: lobste.rs/s/kumzku/cla...

#Cryptography #Optimization #GCC #Clang #Compilers #UndefinedBehavior

“Why Do We Need A [sic] Undefined Behavior Annex For The C++ Standard?”, Intel (community.intel.com/t5/Blogs/Tec...).

“P1705R1: Enumerating Core Undefined Behavior” (wg21.link/P1705).

On HN: news.ycombinator.com/item?id=3954...

#C #CPlusPlus #UndefinedBehavior #PLDI #Optimization

Today is the perfect day to listen to some #undefinedbehavior #psytrance #music

ht @buherator

https://soundcloud.com/burninnoise/undefined-behavior-vs-altruism-perception-box

Programmer Definition: Someone Who Solves a Problem You Didn’t Know You Had in a Way You Don’t Understand.
🔗 techgeeksapparel.com/programmer-d...
#ProgrammerLife #CodeMystery #UndefinedBehavior

Think you understand C? Its "undefined behavior" gives compilers immense freedom, often leading to production failures you can't debug. This post reveals the hidden dangers and why C's flexibility became a trap for critical…

https://www.tpp.blog/1g7i03g

#technology #clanguage #undefinedbehavior