From 313388634d876ee58e96d079cdd28295fa70f9cd Mon Sep 17 00:00:00 2001
From: Alexander Krotov <krotov@iitp.ru>
Date: Fri, 30 Dec 2016 18:15:20 +0300
Subject: [PATCH] Backed out changeset b025c78789fb

---
 src/wifi/model/wifi-utils.cc | 52 +++++++++++++++++++++++
 src/wifi/model/wifi-utils.h  | 81 ++++++++++++++----------------------
 src/wifi/wscript             |  1 +
 3 files changed, 85 insertions(+), 49 deletions(-)
 create mode 100644 src/wifi/model/wifi-utils.cc

diff --git a/src/wifi/model/wifi-utils.cc b/src/wifi/model/wifi-utils.cc
new file mode 100644
index 000000000..1edd4c224
--- /dev/null
+++ b/src/wifi/model/wifi-utils.cc
@@ -0,0 +1,52 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/*
+ * Copyright (c) 2016
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation;
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ * Author: Sébastien Deronne <sebastien.deronne@gmail.com>
+ */
+
+#include "wifi-utils.h"
+#include <cmath>
+
+namespace ns3 {
+
+double
+DbToRatio (double dB)
+{
+  double ratio = std::pow (10.0, dB / 10.0);
+  return ratio;
+}
+
+double
+DbmToW (double dBm)
+{
+  double mW = std::pow (10.0, dBm / 10.0);
+  return mW / 1000.0;
+}
+
+double
+WToDbm (double w)
+{
+  return 10.0 * std::log10 (w * 1000.0);
+}
+
+double
+RatioToDb (double ratio)
+{
+  return 10.0 * std::log10 (ratio);
+}
+
+} //namespace ns3
diff --git a/src/wifi/model/wifi-utils.h b/src/wifi/model/wifi-utils.h
index eb8a776a3..a4613616a 100644
--- a/src/wifi/model/wifi-utils.h
+++ b/src/wifi/model/wifi-utils.h
@@ -21,57 +21,40 @@
 #ifndef WIFI_UTILS_H
 #define WIFI_UTILS_H
 
-#include <cmath>
-
 namespace ns3 {
 
-/**
- * Convert from dBm to Watts.
- *
- * \param dbm the power in dBm
- *
- * \return the equivalent Watts for the given dBm
- */
-constexpr double DbmToW (double dbm)
-{
-  return std::pow (10.0, dbm / 10.0) / 1000.0;
-}
-
-/**
- * Convert from dB to ratio.
- *
- * \param db
- *
- * \return ratio
- */
-constexpr double DbToRatio (double db)
-{
-  return std::pow (10.0, db / 10.0);
-}
-
-/**
- * Convert from Watts to dBm.
- *
- * \param w the power in Watts
- *
- * \return the equivalent dBm for the given Watts
- */
-constexpr double WToDbm (double w)
-{
-  return 10.0 * std::log10 (w * 1000.0);
-}
-
-/**
- * Convert from ratio to dB.
- *
- * \param ratio
- *
- * \return dB
- */
-constexpr double RatioToDb (double ratio)
-{
-  return 10.0 * std::log10 (ratio);
-}
+  /**
+   * Convert from dBm to Watts.
+   *
+   * \param dbm the power in dBm
+   *
+   * \return the equivalent Watts for the given dBm
+   */
+  double DbmToW (double dbm);
+  /**
+   * Convert from dB to ratio.
+   *
+   * \param db
+   *
+   * \return ratio
+   */
+  double DbToRatio (double db);
+  /**
+   * Convert from Watts to dBm.
+   *
+   * \param w the power in Watts
+   *
+   * \return the equivalent dBm for the given Watts
+   */
+  double WToDbm (double w);
+  /**
+   * Convert from ratio to dB.
+   *
+   * \param ratio
+   *
+   * \return dB
+   */
+  double RatioToDb (double ratio);
 
 } // namespace ns3
 
diff --git a/src/wifi/wscript b/src/wifi/wscript
index 50f051764..29ad75608 100644
--- a/src/wifi/wscript
+++ b/src/wifi/wscript
@@ -3,6 +3,7 @@
 def build(bld):
     obj = bld.create_ns3_module('wifi', ['network', 'propagation', 'energy', 'spectrum', 'antenna', 'mobility'])
     obj.source = [
+        'model/wifi-utils.cc',
         'model/wifi-information-element.cc',
         'model/wifi-information-element-vector.cc',
         'model/wifi-channel.cc',