[PATCH v3 07/17] ipa: libipa: vector: Add missing binary arithemtic operators
Milan Zamazal
mzamazal at redhat.com
Tue Nov 19 11:24:41 CET 2024
Laurent Pinchart <laurent.pinchart at ideasonboard.com> writes:
> The Vector class defines multiple element-wise arithmetic operators
> between vectors or between a vector and a scalar. A few variants are
> missing. Add them.
>
> Signed-off-by: Laurent Pinchart <laurent.pinchart at ideasonboard.com>
Reviewed-by: Milan Zamazal <mzamazal at redhat.com>
> ---
> Changes since v2:
>
> - Use std::plus, std::minus, std::multiplies and std::divides
> ---
> src/ipa/libipa/vector.cpp | 54 +++++++++++++++++++++++++++++----------
> src/ipa/libipa/vector.h | 38 ++++++++++++++++++++-------
> 2 files changed, 70 insertions(+), 22 deletions(-)
>
> diff --git a/src/ipa/libipa/vector.cpp b/src/ipa/libipa/vector.cpp
> index 143ee9262f05..d8f7ce951d60 100644
> --- a/src/ipa/libipa/vector.cpp
> +++ b/src/ipa/libipa/vector.cpp
> @@ -77,32 +77,60 @@ namespace ipa {
> * \return The negated vector
> */
>
> +/**
> + * \fn Vector::operator+(Vector const &other) const
> + * \brief Calculate the sum of this vector and \a other element-wise
> + * \param[in] other The other vector
> + * \return The element-wise sum of this vector and \a other
> + */
> +
> +/**
> + * \fn Vector::operator+(T scalar) const
> + * \brief Calculate the sum of this vector and \a scalar element-wise
> + * \param[in] scalar The scalar
> + * \return The element-wise sum of this vector and \a other
> + */
> +
> /**
> * \fn Vector::operator-(Vector const &other) const
> - * \brief Subtract one vector from another
> + * \brief Calculate the difference of this vector and \a other element-wise
> * \param[in] other The other vector
> - * \return The difference of \a other from this vector
> + * \return The element-wise subtraction of \a other from this vector
> */
>
> /**
> - * \fn Vector::operator+()
> - * \brief Add two vectors together
> + * \fn Vector::operator-(T scalar) const
> + * \brief Calculate the difference of this vector and \a scalar element-wise
> + * \param[in] scalar The scalar
> + * \return The element-wise subtraction of \a scalar from this vector
> + */
> +
> +/**
> + * \fn Vector::operator*(const Vector &other) const
> + * \brief Calculate the product of this vector and \a other element-wise
> * \param[in] other The other vector
> - * \return The sum of the two vectors
> + * \return The element-wise product of this vector and \a other
> */
>
> /**
> - * \fn Vector::operator*(T factor) const
> - * \brief Multiply the vector by a scalar
> - * \param[in] factor The factor
> - * \return The vector multiplied by \a factor
> + * \fn Vector::operator*(T scalar) const
> + * \brief Calculate the product of this vector and \a scalar element-wise
> + * \param[in] scalar The scalar
> + * \return The element-wise product of this vector and \a scalar
> */
>
> /**
> - * \fn Vector::operator/()
> - * \brief Divide the vector by a scalar
> - * \param[in] factor The factor
> - * \return The vector divided by \a factor
> + * \fn Vector::operator/(const Vector &other) const
> + * \brief Calculate the quotient of this vector and \a other element-wise
> + * \param[in] other The other vector
> + * \return The element-wise division of this vector by \a other
> + */
> +
> +/**
> + * \fn Vector::operator/(T scalar) const
> + * \brief Calculate the quotient of this vector and \a scalar element-wise
> + * \param[in] scalar The scalar
> + * \return The element-wise division of this vector by \a scalar
> */
>
> /**
> diff --git a/src/ipa/libipa/vector.h b/src/ipa/libipa/vector.h
> index 76fd2934b870..88f2a03fe579 100644
> --- a/src/ipa/libipa/vector.h
> +++ b/src/ipa/libipa/vector.h
> @@ -80,24 +80,44 @@ public:
> return ret;
> }
>
> - constexpr Vector operator-(const Vector &other) const
> - {
> - return apply(*this, other, std::minus<>{});
> - }
> -
> constexpr Vector operator+(const Vector &other) const
> {
> return apply(*this, other, std::plus<>{});
> }
>
> - constexpr Vector operator*(T factor) const
> + constexpr Vector operator+(T scalar) const
> {
> - return apply(*this, factor, std::multiplies<>{});
> + return apply(*this, scalar, std::plus<>{});
> }
>
> - constexpr Vector operator/(T factor) const
> + constexpr Vector operator-(const Vector &other) const
> {
> - return apply(*this, factor, std::divides<>{});
> + return apply(*this, other, std::minus<>{});
> + }
> +
> + constexpr Vector operator-(T scalar) const
> + {
> + return apply(*this, scalar, std::minus<>{});
> + }
> +
> + constexpr Vector operator*(const Vector &other) const
> + {
> + return apply(*this, other, std::multiplies<>{});
> + }
> +
> + constexpr Vector operator*(T scalar) const
> + {
> + return apply(*this, scalar, std::multiplies<>{});
> + }
> +
> + constexpr Vector operator/(const Vector &other) const
> + {
> + return apply(*this, other, std::divides<>{});
> + }
> +
> + constexpr Vector operator/(T scalar) const
> + {
> + return apply(*this, scalar, std::divides<>{});
> }
>
> constexpr T dot(const Vector<T, Rows> &other) const
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