1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
|
# bug #8052
type
UintImpl*[N: static[int], T: SomeUnsignedInt] = object
raw_data*: array[N, T]
template genLoHi(TypeImpl: untyped): untyped =
template loImpl[N: static[int], T: SomeUnsignedInt](dst: TypeImpl[N div 2, T], src: TypeImpl[N, T]) =
let halfSize = N div 2
for i in 0 ..< halfSize:
dst.raw_data[i] = src.raw_data[i]
proc lo*[N: static[int], T: SomeUnsignedInt](x: TypeImpl[N,T]): TypeImpl[N div 2, T] {.inline.}=
loImpl(result, x)
genLoHi(UintImpl)
var a: UintImpl[4, uint32]
a.raw_data = [1'u32, 2'u32, 3'u32, 4'u32]
assert a.lo.raw_data.len == 2
assert a.lo.raw_data[0] == 1
assert a.lo.raw_data[1] == 2
|