this post was submitted on 05 Oct 2024
106 points (94.9% liked)

Programming

17540 readers
57 users here now

Welcome to the main community in programming.dev! Feel free to post anything relating to programming here!

Cross posting is strongly encouraged in the instance. If you feel your post or another person's post makes sense in another community cross post into it.

Hope you enjoy the instance!

Rules

Rules

  • Follow the programming.dev instance rules
  • Keep content related to programming in some way
  • If you're posting long videos try to add in some form of tldr for those who don't want to watch videos

Wormhole

Follow the wormhole through a path of communities [email protected]



founded 2 years ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
[–] [email protected] 5 points 1 month ago (1 children)

C++ with -Wall -Werror, and no pointer diddling.

[–] [email protected] 17 points 1 month ago (1 children)

Its definitely best to try and avoid raw pointers, but even if you try really hard I found it's not really possible to get a Rust-like experience with no UB.

Even something as simple as std::optional - you can easily forget to check it has a value and then boom, UB.

The C++ committee still have the attitude that programmers are capable of avoiding UB if they simply document it, and therefore they can omit all sanity checks. std::optional could easily have thrown an exception rather than UB but they think programmers are perfect and will never make that mistake. There are similar wild decisions with more recent features like coroutines.

They somehow haven't even learnt the very old lesson "safe by default".

If I wanted memory unsafety I think I would consider Zig instead of C++ at this point.

[–] [email protected] 2 points 1 month ago

I recently got bitten by exactly that std::optional UB and here I was thinking 🤔 after 12+ years in the industry starting all the way back in the day with C++03 that modern C++ was supposed to make things better.😐