what's the best way to perform bitwise operations on vector<bool>
?
as i understand, vector<bool>
is a specialisation that uses one bit per boolean. I chose vector<bool>
for memory saving reasons. I know that there are some problems with vector<bool>
but for my needs it's apropriate.
now - what's the most performant way of aplying bitwise operations to whole such vectors?
if i do it in a for loop and readout each single bool and store it back, the way I understand it a lot more operations are performed inside in order to access the actual values.
thanks!
If the number of bits are fixed at compile time, you would be much better off using std::bitset
If not, (i.e. number of bits varies at runtime), then you should see and can use boost::dynamic_bitset
)
In both of these, it is extremely easy to do all the bitwise operations.