@chandlerc1024 Oh I didn't know the ban has been lifted on discussing valarray publicly. Jk aside, I discovered several gems like that by aimlessly perusing cppref in my free time.
@nadavrot take a look at llvm __builtin_memcpy_inline and use it as the basic building block, and rep movsb for aligned blocks (1kb+). glibc's memcpy is highly tuned u might want to consider having an inline version of it were memcpy bottlenecks. Although cache miss is often the reason.
@TJ_Cooney The number of tests they had to make to ensure damage isolation. One shrapnel hitting the glass and it's almost over for the person taking this photo.