Programmer Humor

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Tell me the truth ... (europe.pub)

submitted 6 days ago by cm0002@lemmy.world to c/programmer_humor@programming.dev

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[–] timhh@programming.dev 24 points 6 days ago (1 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.

[–] ethancedwards8@programming.dev 7 points 5 days ago (1 children)

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

[–] bitcrafter@programming.dev 5 points 5 days ago (1 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.

[–] ethancedwards8@programming.dev 2 points 5 days ago (1 children)

Could you provide an example?

[–] timhh@programming.dev 1 points 2 days ago

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