timhh comments on Tell me the truth ...

Programmer Humor

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[–] timhh@programming.dev 24 points 1 year ago (4 children)

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.

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[–] ethancedwards8@programming.dev 7 points 1 year ago (3 children)

Why is this a big mistake? I’m not a c++ person

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[–] bitcrafter@programming.dev 5 points 1 year ago (2 children)

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.

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[–] ethancedwards8@programming.dev 2 points 1 year ago (1 child)

Could you provide an example?

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[–] timhh@programming.dev 1 point 1 year ago

The biggest problem is that each element doesn't have a unique memory address; iterators aren't just pointers.

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