fix types in split's kernel

src/operator/Split.cpp

@@ -37,15 +37,15 @@ void Aidge::Split_OpImpl::forward() {
     const std::size_t stride_post = std::accumulate(dims.crbegin(), dims.crbegin() + dims.size() -1 - axis, 1, std::multiplies<std::size_t>());
     for (auto i = 0; i < op.nbOutputs(); ++i)
     {
-        DimIdx_t chunkIdxOnAxis = std::accumulate(splits.cbegin(), splits.cbegin() + i, 0) * stride_post;
-        DimIdx_t offset = 0;
+        DimSize_t chunkIdxOnAxis = std::accumulate(splits.cbegin(), splits.cbegin() + i, 0) * stride_post;
+        DimSize_t offset = 0;
         for (std::size_t j = 0; j < stride_pre; ++j)
         {
             // Compute chunk position in input tensor
-            DimIdx_t idx = j * stride_post * dims[axis] + chunkIdxOnAxis;
+            DimSize_t idx = j * stride_post * dims[axis] + chunkIdxOnAxis;
             // Copy chunk in ouput
             op.getOutput(i)->getImpl()->copy(op.getInput(0)->getImpl()->rawPtr(idx),
-                                             splits[i] * stride_post, offset);
+                                            splits[i] * stride_post, offset);
             offset += splits[i] * stride_post;
         }