For as long as I can remember, in C and C++ there existed this mantra that bounds checking had a huge performance impact. And that justified having none in std::vector and other containers, causing 40% of the memory bugs. Then the good people at Google went and did it and the performance impact was just 0.3%.
@chandlerc talks about that misconception here: https://chandlerc.blog/posts/2024/11/story-time-bounds-checking/
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