[PATCH 07/11] ipa: libipa: pwl: Add a size() function

[Laurent Pinchart]

Add a size() function to the Pwl class to return the number of points in
the piecewise linear function. This is useful, for instance, to validate
that all points added with append() or prepend() have been taken into
account.

Signed-off-by: Laurent Pinchart <laurent.pinchart at ideasonboard.com>
---
 src/ipa/libipa/pwl.cpp | 6 ++++++
 src/ipa/libipa/pwl.h   | 2 ++
 2 files changed, 8 insertions(+)

diff --git a/src/ipa/libipa/pwl.cpp b/src/ipa/libipa/pwl.cpp
index d8ea92be0a86..8b437dd1a650 100644
--- a/src/ipa/libipa/pwl.cpp
+++ b/src/ipa/libipa/pwl.cpp
@@ -188,6 +188,12 @@ void Pwl::prepend(double x, double y, const double eps)
  * \return True if there are no points in the function, false otherwise
  */
 
+/**
+ * \fn Pwl::size() const
+ * \brief Retrieve the number of points in the piecewise linear function
+ * \return The number of points in the piecewise linear function
+ */
+
 /**
  * \brief Get the domain of the piecewise linear function
  * \return An interval representing the domain
diff --git a/src/ipa/libipa/pwl.h b/src/ipa/libipa/pwl.h
index b4de00cf88f0..028342314fca 100644
--- a/src/ipa/libipa/pwl.h
+++ b/src/ipa/libipa/pwl.h
@@ -52,6 +52,8 @@ public:
 	void append(double x, double y, double eps = 1e-6);
 
 	bool empty() const { return points_.empty(); }
+	size_t size() const { return points_.size(); }
+
 	Interval domain() const;
 	Interval range() const;
 
-- 
Regards,

Laurent Pinchart