Re^2: In-place bitwise NOT?

That certainly works and doesn't appear to do any copying. It comes out at nearly 50% faster than tr//:

C:\test>1046579 -N=2**20
            Rate     str translate         C
str        656/s     --        -8%      -37%
translate  713/s     9%         --      -32%
C         1047/s     60%       47%        --
[download]

The only downside is that it imposes the need for a compiler on a module that otherwise doesn't need one.

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