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24 lines
650 B
Nim
24 lines
650 B
Nim
# bug #8052
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type
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UintImpl*[N: static[int], T: SomeUnsignedInt] = object
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raw_data*: array[N, T]
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template genLoHi(TypeImpl: untyped): untyped =
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template loImpl[N: static[int], T: SomeUnsignedInt](dst: TypeImpl[N div 2, T], src: TypeImpl[N, T]) =
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let halfSize = N div 2
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for i in 0 ..< halfSize:
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dst.raw_data[i] = src.raw_data[i]
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proc lo*[N: static[int], T: SomeUnsignedInt](x: TypeImpl[N,T]): TypeImpl[N div 2, T] {.inline.}=
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loImpl(result, x)
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genLoHi(UintImpl)
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var a: UintImpl[4, uint32]
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a.raw_data = [1'u32, 2'u32, 3'u32, 4'u32]
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assert a.lo.raw_data.len == 2
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assert a.lo.raw_data[0] == 1
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assert a.lo.raw_data[1] == 2
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