Fixed post merge issues

include/aidge/backend/TensorImpl.hpp

@@ -154,12 +154,12 @@ public:
     /**
      * Return the number of elements stored.
     */
-    std::size_t size() const { return mNbElts; }
+    inline std::size_t size() const noexcept { return mNbElts; }
 
     /**
      * Return the size (in bytes) of one element (scalar).
     */
-    virtual std::size_t scalarSize() const = 0;
+    virtual std::size_t scalarSize() const noexcept = 0;
     constexpr const char *backend() const { return mBackend; }
     virtual ~TensorImpl() = default;
     virtual bool operator==(const TensorImpl &othImpl) const = 0;