doc Abs operator

include/aidge/operator/Abs.hpp

@@ -24,16 +24,32 @@
 
 namespace Aidge {
 
+/**
+* @brief Description of an element-wise Absolute Value (Abs) operation
+ * on an input Tensor.
+ *
+ * For each element x in the input, the function is defined as:
+ * `f(x) = |x|`, where |x| denotes the absolute value of x.
+ *
+ * The input and output Tensors have the same dimensions.
+ *
+ * @see OperatorTensor
+ * @see Registrable
+ */
 class Abs_Op : public OperatorTensor,
-    public Registrable<Abs_Op, std::string, std::function<std::shared_ptr<OperatorImpl>(const Abs_Op&)>> {
+    public Registrable<Abs_Op,  // <Op, backend, implementation creation function>
+        std::string,
+        std::function<std::shared_ptr<OperatorImpl>(const Abs_Op&)>> {
 public:
     static const std::string Type;
 
     Abs_Op() : OperatorTensor(Type, {InputCategory::Data}, 1) {}
 
     /**
-     * @brief Copy-constructor. Copy the operator attributes and its output tensor(s), but not its input tensors (the new operator has no input associated).
-     * @param op Operator to copy.
+     * @brief Copy-constructor.
+     * @param op Abs_Op to copy.
+     * @details Copies the operator attributes and its output tensor(s), but not
+     * its input tensors. The new operator has no associated input.
      */
     Abs_Op(const Abs_Op& op)
         : OperatorTensor(op)