Detect allocate_at_least with a concept - #3891

Detect allocate_at_least with a concept#3891

Stephan T. Lavavej (StephanTLavavej) merged 2 commits into

microsoft:mainmicrosoft/STL:mainfrom

CaseyCarter:re_re_un_allocate_at_mostCaseyCarter/STL:re_re_un_allocate_at_mostCopy head branch name to clipboard