ipa: libipa: vector: Rename the dot product operator*() to dot()

The Vector class defines a set of arithmetic operators between two
vectors or a vector and a scalar. All the operators perform element-wise
operations, except for the operator*() that computes the dot product.
This is inconsistent and confusing. Replace the operator with a dot()
function.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Milan Zamazal <mzamazal@redhat.com>

src/ipa/libipa/vector.cpp

@@ -78,13 +78,6 @@ namespace ipa {
  * \return The sum of the two vectors
  */
 
-/**
- * \fn Vector::operator*(const Vector<T, Rows> &other) const
- * \brief Compute the dot product
- * \param[in] other The other vector
- * \return The dot product of the two vectors
- */
-
 /**
  * \fn Vector::operator*(T factor) const
  * \brief Multiply the vector by a scalar
@@ -99,6 +92,13 @@ namespace ipa {
  * \return The vector divided by \a factor
  */
 
+/**
+ * \fn Vector::dot(const Vector<T, Rows> &other) const
+ * \brief Compute the dot product
+ * \param[in] other The other vector
+ * \return The dot product of the two vectors
+ */
+
 /**
  * \fn constexpr T &Vector::x()
  * \brief Convenience function to access the first element of the vector