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Tell me the truth ...
(piefed.jeena.net)
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this post was submitted on 15 May 2025
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Are you telling me that no compiler optimizes this? Why?
Well there are containers that store booleans in single bits (e.g.
std::vector<bool>- which was famously a big mistake).But in the general case you don't want that because it would be slower.
Why is this a big mistake? I’m not a c++ person
The mistake was that they created a type that behaves like an array in every case except for
bool, for which they created a special magical version that behaves just subtly different enough that it can break things in confusing ways.Could you provide an example?
The biggest problem is that each element doesn't have a unique memory address; iterators aren't just pointers.