Upd constant of shape

Context

Use Tensor as input of the ConstantOfShape kernel to avoid redundant size computation.

Kernel performance is unchanged. (x-axis is the number of elements in the output)

include/aidge/backend/cpu/operator/ConstantOfShapeImpl.hpp

@@ -12,23 +12,21 @@
 #ifndef AIDGE_CPU_OPERATOR_CONSTANTOFSHAPEIMPL_H_
 #define AIDGE_CPU_OPERATOR_CONSTANTOFSHAPEIMPL_H_
 
-#include <cstddef>
 #include <memory>
-#include <vector>
 
 #include "aidge/backend/cpu/operator/OperatorImpl.hpp"
 #include "aidge/operator/ConstantOfShape.hpp"
 #include "aidge/utils/Registrar.hpp"
-#include "aidge/utils/Types.h"
 
 namespace Aidge {
+
+class Tensor;
 // Operator implementation entry point for the backend
 using ConstantOfShapeImpl_cpu = OperatorImpl_cpu<ConstantOfShape_Op,
-    void(const std::vector<DimSize_t>, const Tensor&, void *)>;
+    void(const std::shared_ptr<Tensor>&, const Tensor&)>;
 
 // Implementation entry point registration to Operator
 REGISTRAR(ConstantOfShape_Op, "cpu", Aidge::ConstantOfShapeImpl_cpu::create);
 } // namespace Aidge
 
 #endif /* _AIDGE_CPU_OPERATOR_CONSTANTOFSHAPEIMPL_H_ */
-