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Sagar_Indurkhya

Questions about the speed of bitset

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I am currently in a situation where my chess programming experience(manipulating the bits of integers) is going to come in very very handy. However, in my case, there is n such that n > 64. Therefore, I am looking at the STL's bitset class, which provides and, or, xor, etc, operations. I have 2 questions: 1) I have seen how to declare a bitset using a predefined number, but what if I want to use a variable to specify the number of elements? 2) While I was googling about it, I read some stuff about how bitset is slow, and especially if you are testing each bit.

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Quote:
Original post by Sagar_Indurkhya
1) I have seen how to declare a bitset using a predefined number, but what if I want to use a variable to specify the number of elements?


if you mean the size can be specified or changed at run-time then look into boost::dynamic_bitset

Quote:
Original post by Sagar_Indurkhya
2) While I was googling about it, I read some stuff about how bitset is slow, and especially if you are testing each bit.


Sounds like more rubbish myths.

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