<algorithm>: Rework internal buffers for stable sorting algorithms - #5807

<algorithm>: Rework internal buffers for stable sorting algorithms#5807

Stephan T. Lavavej (StephanTLavavej) merged 2 commits into

microsoft:mainmicrosoft/STL:mainfrom

frederick-vs-ja:refactor-optimistic-temporary-bufferfrederick-vs-ja/STL:refactor-optimistic-temporary-bufferCopy head branch name to clipboard