I like a lot your "Precision doubler": https://github.com/voidware/dp/blob/master/dp.h https://github.com/voidware/dp/blob/master/dp.h You gave me an idea for

I like a lot your "Precision doubler": https://github.com/voidware/dp/blob/master/dp.h https://github.com/voidware/dp/blob/master/dp.h You gave me an idea for multiprecision numbers with variadic templates (like tuple<> with head/tail). Thank you!