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