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A comment on Rust is for Professionals. Parent comment

Re:Rust is for Professionals by devit on Tuesday April 13, 2021 @01:20PM (#26795724)
The latter change introduces an unnecessary clone(). The correct approach is to instead introduce a variable so that headerRegex can keep being a reference to either that variable or to HEADER_REGEX.
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Re:Rust is for Professionals by ahelwer on Tuesday April 13, 2021 @07:38PM (#26801029)
Can you expand on how this stops a clone from happening?
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Re:Rust is for Professionals by devit on Tuesday April 13, 2021 @08:02PM (#26801285)
If you don't call clone() then a clone doesn't happen...
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Re:Rust is for Professionals by ahelwer on Tuesday April 13, 2021 @08:55PM (#26801693)
Ah, I didn't see the extra clone. I thought it was something to do with that additional variable you defined. I guess you need to do that or else you have to do a clone.
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