On Tue, May 1, 2012 at 4:35 PM, Joel <jdy@cryregarder.com> wrote:
I've noticed that the dynamic_bitset seems to have endian issues. For masking out the ith bit in a block, it uses 1 shifted left by i. As a result, the bits are not consecutive.
For example if the block_type is uint8_t, and we have 16 bits in the bitset, then bits are numbered:
00 01 02 03 04 05 06 07 15 14 13 12 11 10 09 08
in memory.
Wrong, in increasing address order, it would rather be 07 06 05 04 03 02 01 00 15 14 13 12 11 10 09 08
That doesn't seem right---7th and 8th bits should be adjacent. Does anyone have suggestions for controlling this?
Why? How is that a problem?
Second, has anyone adapted dynamic_bitset to be an adaptor for an existing memory range to avoid copying?
I haven't, but it sounds like a good idea :) -- François