Improved Tensor::zeros()

include/aidge/backend/TensorImpl.hpp

@@ -201,9 +201,7 @@ public:
     /**
      * @brief Set every element of the implementation to zero.
      */
-    virtual void zeros() {
-        AIDGE_THROW_OR_ABORT(std::runtime_error, "Function not implented");
-    }
+    virtual void zeros() = 0;
 
     const std::string backend() const { return mBackend; }
 

src/backend/cpu/data/TensorImpl.cpp

@@ -38,12 +38,7 @@ bool Aidge::TensorImpl_cpu<T>::operator==(const Aidge::TensorImpl &other) const
 
 template <typename T>
 void Aidge::TensorImpl_cpu<T>::zeros() {
-    if (mData.empty()) {
-        lazyInit();
-    }
-    for (std::size_t i = 0; i < mData.size(); ++i) {
-        *(mData.data() + i) = T(0);
-    }
+    std::memset(rawPtr(), T(0), mNbElts * sizeof(T));
 }
 
 template <typename T>