Ensure value_cast<QP> uses the minimum number of operataions needed
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…m another QP to leverage sudo_cast
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@burnpanck, I fixed all the CI issues today. If you could rebase to master, we would see this change's real CI status. |
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@burnpanck, do you still plan to work on your PRs? |
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Hi @burnpanck! Do you plan to work on those in the near future. I plan to release mp-units 2.3 soon. |
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This PR is supposed to continue from the discussion here, where
value_cast<QP>was introduced.Basically,
value_cast<QP>does three steps:However, in the current implementation, the second step (change of origin) may in fact introduce more representation conversions internally: to a common representation between the offset and the value. However, here, that is not necessary, because the representation of the value is already chosen suitably.