Re: [boost] [dynamic_bitset] Comparison operators without assertions

Subject: Re: [boost] [dynamic_bitset] Comparison operators without assertions
From: degski (degski_at_[hidden])
Date: 2017-05-16 06:49:24

On 15 May 2017 at 23:50, Edward Diener via Boost <boost_at_[hidden]>
wrote:

> What I have ended up doing is to keep the exact same behavior as before
> when the bitsets are of equal size. When the bitsets are of unequal size,
> if either size is 0 that bitset is less than the other one. If neither size
> is 0 I convert both bitsets to an unsigned long using the already provided
> member function to_ulong() and use those values for the comparison.
>

 A throwing function returning a ulong seem wrong and restrictive (32 bits
on windows). If my bitset was only 32 bits long, I wouldn't use a
dynamic_bitset<> in the first place.

I found that it was completely wrong to do bit-by-bit comparisons when the
> bitsets were not the same size.

Size/length could be the deciding factor in this case.

degski
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