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discard """
output: '''12
4'''
"""
{.emit: """
NI sum(NI* a, NI len) {
NI i, result = 0;
for (i = 0; i < len; ++i) result += a[i];
return result;
}
""".}
proc sum(a: ptr int; len: int): int {.importc, nodecl.}
proc main =
let foo = [8, 3, 1]
echo sum(unsafeAddr foo[0], foo.len)
# bug #3736
proc p(x: seq[int]) = discard x[0].unsafeAddr # works
proc q(x: seq[SomeInteger]) = discard x[0].unsafeAddr # doesn't work
p(@[1])
q(@[1])
main()
# bug #9403
type
MyObj = ref object
len: int
val: UncheckedArray[uint64]
proc spot(x: MyObj): int64 =
result = cast[UncheckedArray[int64]](x.val)[0]
proc newMyObj(len: int): MyObj =
unsafeNew(result, sizeof(result[]) + len * sizeof(uint64))
result.len = len
result.val[0] = 4u64
result.val[1] = 8u64
echo spot(newMyObj(2))
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