On Thu, Dec 8, 2016 at 12:48 AM, Wanghb Wang <wangh...@gmail.com> wrote:
> my C code Array for example:
> const uint8_t** kPacketMaskRandomTbl[48] = {
> kPacketMaskRandom1,
> kPacketMaskRandom2,
> kPacketMaskRandom3,
> .....
> };
> const uint8_t* kPacketMaskRandom1[1] = {
> kMaskRandom1_1
> };
> const uint8_t kMaskRandom1_1[2] = {
> 0x80, 0x00
> };
> .....
>
>
> I want to read bytes from
> kPacketMaskRandomTbl
> by using cgo, How can I do?
>
> I write code like this
>
> qq :=
> ((*uint8)(unsafe.Pointer((uintptr((*uint8)(unsafe.Pointer(uintptr(unsafe.Pointer(p))+uintptr(1))))
> + uintptr((unsafe.Sizeof(*uint8)))))))
>
> It is not right!
> How can I do?
The top level array should have the type of a Go array, but it's true
that the inner levels will be pointer types, and of course Go, unlike
C, does not permit array-style access for pointer types. I would
suggest simply writing little helper functions in Go to do the array
accessing using unsafe.Pointer.
Ian
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