Discussion (5 Comments)Read Original on HackerNews

mayoff•about 2 hours ago

In Swift (Apple’s C++ successor), the normal operators (`+`, `-`, `*`) trap on overflow for integer types. If you want twos complement wrapping, you can use `&+`, `&-`, and `&*`.

Given that Apple has been making its own CPU cores for years now, I suspect overflowing checking on Apple CPUs is virtually free (aside from code size).

tcfhgj•about 1 hour ago

Definitely cheaper than using Electron I would say

gnabgib•2 days ago

2014 (probably? Or 2008. Old and no date) Previously (166 points, 2014, 107 comments) https://news.ycombinator.com/item?id=8765714

zahlman•2 days ago

Resubmitting it seems timely, given recent Linux kernel news (e.g. https://lwn.net/Articles/1065889/).

aw1621107•about 3 hours ago

The archive says "12/14", so 2014 seems about right.

Integer Overflow Checking Cost

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Discussion (5 Comments)Read Original on HackerNews