Minor adaptations

include/aidge/backend/cuda/data/TensorImpl.hpp

@@ -81,6 +81,10 @@ public:
     }
 
     void copyCast(const void *src, NbElts_t length, const DataType srcDt) override {
+        if (length == 0) {
+            return;
+        }
+
         if (srcDt == DataType::Float64) {
             thrust_copy(static_cast<const double*>(src),
                         static_cast<T*>(rawPtr()),
@@ -208,8 +212,6 @@ public:
 
 private:
     void lazyInit() {
-        AIDGE_INTERNAL_ASSERT(mTensor.dataType() == NativeType<T>::type);
-
         if (mData.size() < mTensor.size()) {
             // Need more data, a re-allocation will occur
             AIDGE_ASSERT(mData.empty() || mDataOwner != nullptr, "trying to enlarge non-owned data");