Declaring global variable of array of struct from native library.

[S-YOU]

Original C code has something like this

struct rte_eth_dev rte_eth_devices[32];

If I declare like this on lib

$rte_eth_devices : RteEthDev[32]

I got compile time error like this.

Module validation failed: Function return type does not match operand type of return inst!
  ret [32 x %"struct.LibDpdk::RteEthDev"]* %0
 [32 x %"struct.LibDpdk::RteEthDev"]
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Error: you've found a bug in the Crystal compiler. Please open an issue, including source code that will allow us to reproduce the bug: https://github.com/crystal-lang/crystal/issues

I could declare like RteEthDev*, but actual array is not allocated there, got invalid memory access later on.

Is there anything I am missing or is this a limitation?

[ysbaddaden]

Does struct rte_eth_dev rte_eth_devices[32]; ends up being static, in C?

Maybe a workaround:

lib X
  $rte_eth_devices : RteEthDev
end

rte_eth_devices = Slice.new(pointerof(X.rte_eth_devices), 32)