Add Box::replace #23309

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1. dotdash commented on Mar 12, 2015

   

   dotdash

   on Mar 12, 2015

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   Does this really need a method on Box?

   let mut b = Box::new(5);
   let old = std::mem::replace(&mut *b, 10);

   doesn't look that bad.

   Edit: Made b mutable.
2. mahkoh commented on Mar 12, 2015

   

   mahkoh

   on Mar 12, 2015

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   You're right. Didn't think of that one.
3. lnicola

   added a commit that references this issue on Sep 14, 2026

   Merge pull request rust-lang#23309 from Wilfred/fix/term-search-unify…

   ...

   fcdf7f6