Re: [boost] Decimal: Formal review begins

Ivan Matek wrote:

For me the interesting thing about comparisons beside Peter improvements is that benefits from normalization seem to depend on how many times user does certain operation.

user does auto x = a * b * c * d * e; x < y;

Multiplication probably won't suffer much, but addition with different signs might take quite a hit because of normalization of the result. One could in theory engage the type system here and make operator+ for decimal64_fast return decimal64_fast_non_normalized, which will then only be normalized once on the final store to x. Who knows whether this will be worth doing or not, perf-wise.