New LANumerics package for numerical linear algebra in Swift

[Lantua]

@phlegmaticprogrammer

or when I know that U and V have compatible layouts

IIRC, compatible layout is not enough for assumeMemoryLayout, it’d also need to be related type, In Swift, this rule is much stricter, so things like UInt32 and Int32 are not related (yet), only layout compatible.

@phlegmaticprogrammer

I am using recast<U,V> only when I know that U and V are the same, but the compiler is not smart enough to figure it out

Paint me curious. It’s intriguing that this could happen. I’d probably dig deeper should I have time.

@phlegmaticprogrammer

my access to the recast pointer doesn't live longer than my access to the original pointer.

That’d be related to object lifetime, which I’m not too worried about. I believe someone w/ your caliber should be already familiar with the fact that pointers don’t contribute to lifetime management (and that you can only access live objects).