<xstring>: Use memmove in construction of basic_string when the source is a suitable contiguous range - #4073

<xstring>: Use memmove in construction of basic_string when the source is a suitable contiguous range#4073

Stephan T. Lavavej (StephanTLavavej) merged 6 commits into

microsoft:mainmicrosoft/STL:mainfrom

frederick-vs-ja:string-from-contiguousfrederick-vs-ja/STL:string-from-contiguousCopy head branch name to clipboard