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I'm working with a user-defined quantity of bits (I'm holding a three-dimensional array of bits, so the size increases cubically - assume no less then 512 bits), and need to flip them each individually. Right now, just on a computer, I'm using the bool type, since memory isn't an issue. I do plan to move the code to a microcontroller in the future, and so processing power and memory requirements may be an issue. Right now though, I just want speed. I then found the std::bitset object from the C++ STL , but I can't define a bitset's size at runtime. I then found that the std::vector<bool> has a special initializer to store them as bits (instead of entire bytes, or 4 bytes) but then found this section in Wikipedia: The Standard Library defines a specialization of the vector template for bool . The description of this specialization indicates that the implementation should pack the elements so that every bool only uses one bit of memory. This is widely considered a mistake. [...] There is a general consensus among the C++ Standard Committee and the Library Working Group that vector<bool> should be deprecated and subsequently removed from the standard library, while the functionality will be reintroduced under a different name. Now, you can probably see my want for using a vector<bool> object, but after reading that, I'm considering using something else. The only problem is that I'm not sure what to use. I was curious though why they state that the functionality should be re-introduced (albeit under a different name). So, my question is, would the use of vector<bool><

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