Procs

proc toUncheckedArray[T](a: ptr T): ptr UncheckedArray[T] {.inline.}

Shortcut for cast[ptr UncheckedArray[T]](a), where T is inferred. This allows array indexing operations on a. This is unsafe as it returns UncheckedArray.

Example:

var a = @[10, 11, 12]
let pa = a[1].addr.toUncheckedArray
doAssert pa[-1] == 10
pa[0] = 100
doAssert a == @[10, 100, 12]
pa[0] += 5
doAssert a[1] == 105