TLDR Web Dev · ARTICLES & TUTORIALS

FALSEHOODS PROGRAMMERS BELIEVE ABOUT NULL POINTERS

purplesyringa.moe12 min read

Summary from the TLDR Web Dev newsletter

Programmers commonly have some misconceptions about null pointers in languages like C, C++, and Rust. This article debunks assumptions ranging from immediate crashes upon dereferencing to the guaranteed address of zero for null pointers. These misconceptions come from compiler optimizations, platform-specific quirks, and the evolving understanding of undefined behavior.