overload NNlib._rng_compat_array (#62)

* overload NNlib._rng_compat_array

* trigger CI

Author: mcabbott

Project.toml

@@ -1,6 +1,6 @@
 name = "NNlibCUDA"
 uuid = "a00861dc-f156-4864-bf3c-e6376f28a68d"
-version = "0.2.5"
+version = "0.2.6"
 
 [deps]
 Adapt = "79e6a3ab-5dfb-504d-930d-738a2a938a0e"
@@ -13,7 +13,7 @@ Statistics = "10745b16-79ce-11e8-11f9-7d13ad32a3b2"
 [compat]
 Adapt = "3.3"
 CUDA = "3.11"
-NNlib = "0.8.14"
+NNlib = "0.8.15"
 julia = "1.6"
 
 [extras]

src/utils.jl

@@ -1,5 +1,9 @@
 NNlib._rng_from_array(::CuArray) = CUDA.default_rng()
 
+NNlib._rng_compat_array(rng::CUDA.RNG, A::CuArray) = nothing
+NNlib._rng_compat_array(rng::AbstractRNG, A::CuArray) = throw(ArgumentError(
+    "cannot use rng::$(typeof(rng)) with array::CuArray, only CUDA's own RNG type works"))
+
 function divide_kernel!(xs, ys, max_idx)
     index = threadIdx().x + (blockIdx().x - 1) * blockDim().x