From ff12f975b2b49dbf81125e1fa7081263b1dcc25f Mon Sep 17 00:00:00 2001
From: Tommaso Pecorella <tommaso.pecorella@unifi.it>
Date: Thu, 18 May 2023 12:23:59 +0200
Subject: [PATCH] stats: allow cleaning the content of an histogram

---
 CHANGES.md                   | 1 +
 src/stats/model/histogram.cc | 6 ++++++
 src/stats/model/histogram.h  | 5 +++++
 3 files changed, 12 insertions(+)

diff --git a/CHANGES.md b/CHANGES.md
index cadfce005..0e40e76c3 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -24,6 +24,7 @@ Changes from ns-3.38 to ns-3-dev
 * (network) Added `Mac16Address::Mac16Address(uint16t addr)` and `Mac16Address::Mac64Address(uint64t addr)` constructors.
 * (lr-wpan) Added `LrwpanMac::MlmeGetRequest` function and the corresponding confirm callbacks as well as `LrwpanMac::SetMlmeGetConfirm` function.
 * (applications) Added `Tx` and `TxWithAddresses` trace sources in `UdpClient`.
+* (stats) Added `Histogram::Clear` function to clear the histogram contents.
 
 ### Changes to existing API
 
diff --git a/src/stats/model/histogram.cc b/src/stats/model/histogram.cc
index 96fa5d85e..2e58e4af9 100644
--- a/src/stats/model/histogram.cc
+++ b/src/stats/model/histogram.cc
@@ -92,6 +92,12 @@ Histogram::AddValue(double value)
     m_histogram[index]++;
 }
 
+void
+Histogram::Clear()
+{
+    m_histogram.clear();
+}
+
 Histogram::Histogram(double binWidth)
 {
     m_binWidth = binWidth;
diff --git a/src/stats/model/histogram.h b/src/stats/model/histogram.h
index 9b378e428..7d5dedac9 100644
--- a/src/stats/model/histogram.h
+++ b/src/stats/model/histogram.h
@@ -102,6 +102,11 @@ class Histogram
      */
     void AddValue(double value);
 
+    /**
+     * Clear the histogram content.
+     */
+    void Clear();
+
     /**
      * \brief Serializes the results to an std::ostream in XML format.
      * \param os the output stream