Chris Wellons • 9/30/2025

More speculations on arenas in C++

Read Original

The article delves into C++ arena allocation, discussing object lifetime semantics and how common C-style memory management can be ill-formed in C++. It references C++20 exceptions and new features like start_lifetime_as, analyzing a custom arena allocator implementation and identifying subtle issues with pointer provenance and placement new.

0 comments
#c #memory management #Arena Allocation
More speculations on arenas in C++

Comments

No comments yet

Be the first to share your thoughts!

Browser Extension

Get instant access to AllDevBlogs from your browser

Top of the Week

1
The Beautiful Web
Jens Oliver Meiert • 2 votes
2
When your coding agent doesn’t understand your project, you’ll get junk
Benjamin Cane • 1 votes
3
LLM Use in the Python Source Code
Miguel Grinberg • 1 votes
4
Wagon’s algorithm in Python
John D. Cook • 1 votes
5
An example conversation with Claude Code
Dumm Zeuch • 1 votes