Commits on Jun 14, 2022

1. Clarify [T]::select_nth_unstable* return values …

   In cases where the nth element is not unique within the slice, it is not
   correct to say that the values in the returned triplet include ones for
   "all elements" less/greater than that at the given index: indeed one (or
   more) such values would then laso contain values equal to that at the
   given index.
   
   The text proposed here clarifies exactly what is returned, but in so
   doing it is also documenting an implementation detail that previously
   wasn't detailed: namely that the return slices are slices into the
   reordered slice.  I don't think this can be contentious, because the
   lifetimes of those returned slices are bound to that of the original
   (now reordered) slice—so there really isn't any other reasonable
   implementation that could have this behaviour; but nevertheless it's
   probably best if @rust-lang/libs-api give it a nod?
   
   Fixes rust-lang#97982
   r? m-ou-se
   
   @rustbot label +A-docs C-bug +T-libs-api

   

   eggyal committed Jun 14, 2022
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