Added missing clone for new MaxPooling_Op

include/aidge/operator/MaxPooling.hpp

@@ -63,6 +63,28 @@ public:
         setDatatype(DataType::Float32);
     }
 
+    /**
+     * @brief Copy-constructor. Copy the operator parameters and its output tensor(s), but not its input tensors (the new operator has no input associated).
+     * @param op Operator to copy.
+     */
+    MaxPooling_Op(const MaxPooling_Op& op)
+        : Operator(Type),
+          Parameterizable_(op),
+          mOutput(std::make_shared<Tensor>(*op.mOutput))
+    {
+        // cpy-ctor
+        setDatatype(op.mOutput->dataType());
+    }
+
+    /**
+     * @brief Clone the operator using its copy-constructor.
+     * @see Operator::MaxPooling_Op
+     * @param op Operator to copy.
+     */
+    Operator* clone() const override {
+        return new MaxPooling_Op<DIM>(*static_cast<const MaxPooling_Op<DIM>*>(this));
+    }
+
     constexpr void associateInput(const IOIndex_t inputIdx, std::shared_ptr<Data> data) override final {
         assert(inputIdx < 1 && "operators supports only 3 inputs");
         (void) inputIdx; // avoid unused warning