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A comment on Libc++'s Implementation of std::string. Parent comment

Re:Libc++'s Implementation of std::string by edflsafoiewq on Thursday January 30, 2020 @11:10PM (#22198960)
If you use the LSB of the last byte for a flag, you're using the 56th bit of one of the {data,size,cap} words. I'd use the MSB in this case, since you can shift that off easier.
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