[swift-evolution] UInt64 indices broken

[G Alexander]

All,

Why does swift fails to fully implement UInt in any object, arrays, sequence, range, etc

Initializer for Range, from "http://swiftdoc.org/v3.1/type/Range/"

 For example, passing a closed range with an upper bound of Int.max triggers a runtime error, because the resulting half-open range would require an upper bound of Int.max + 1, which is not representable as an Int.

So any algorithm that needs large arrays such that,   UInt64.max > index > Int64  too bad?

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