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PhilipWitte/carray.nim

Last active April 5, 2021 14:58
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Unchecked Array vs Pointer Arithmatic
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carray.nim
type
CArray{.unchecked.}[T] = ptr array[1, T]
type
A = object
items: ptr float
B = object
items: CArray[float]
proc getItem(a:A, i:int): float = cast[ptr float](cast[int](a.items) + (i * sizeof float))[]
proc getItem(b:B, i:int): float = b.items[i] # much easier
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