25 lines
768 B
Nim
25 lines
768 B
Nim
import ./datatypes, ./uint_bitwise_ops
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func convertImpl[T: SomeInteger](x: SomeInteger): T {.compileTime.} =
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cast[T](x)
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func convertImpl[T: IntImpl|UintImpl](x: IntImpl|UintImpl): T {.compileTime.} =
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result.hi = convertImpl[type(result.hi)](x.hi)
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result.lo = x.lo
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template convert*[T](x: UintImpl|IntImpl|SomeInteger): T =
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when nimvm:
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# this is a workaround Nim VM inability to cast
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# something non integer
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convertImpl[T](x)
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else:
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cast[T](x)
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func getByte*(x: SomeInteger, pos: int): byte {.compileTime.} =
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type DT = type x
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byte((x shr (pos * 8)) and 0xFF.DT)
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func getByte*(x: UintImpl | IntImpl, pos: int): byte {.compileTime.} =
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type DT = type x.leastSignificantWord
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byte((x shr (pos * 8)).leastSignificantWord and 0xFF.DT)
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