add [[msvc::intrinsic]] for some cast funcs. - #3664

add [[msvc::intrinsic]] for some cast funcs.#3664

Stephan T. Lavavej (StephanTLavavej) merged 4 commits into

microsoft:mainmicrosoft/STL:mainfrom

infdahai:simp_intric_supportinfdahai/STL:simp_intric_supportCopy head branch name to clipboard