From 8ca5dceddef519db7e2256b4fcc64699b1f49893 Mon Sep 17 00:00:00 2001
From: Anton Ottosson <antonott@kth.se>
Date: Thu, 8 Jul 2021 21:51:53 +0200
Subject: [PATCH] Make `d_H` inherited from base class.

All equalizer classes had their own private `d_H` vector, despite all being derived from a common `base` class. Now `d_H` is instead a protected member of `base`, and thus accessible to the derived equalizer classes.
---
 lib/equalizer/base.h | 2 ++
 lib/equalizer/comb.h | 3 ---
 lib/equalizer/lms.h  | 2 --
 lib/equalizer/ls.h   | 1 -
 lib/equalizer/sta.h  | 1 -
 5 files changed, 2 insertions(+), 7 deletions(-)

diff --git a/lib/equalizer/base.h b/lib/equalizer/base.h
index 2e9193d..279c33e 100644
--- a/lib/equalizer/base.h
+++ b/lib/equalizer/base.h
@@ -35,6 +35,8 @@ public:
 
 protected:
 	static const gr_complex LONG[64];
+
+	gr_complex d_H[64];
 };
 
 } /* namespace channel_estimation */
diff --git a/lib/equalizer/comb.h b/lib/equalizer/comb.h
index cf26890..daf2e63 100644
--- a/lib/equalizer/comb.h
+++ b/lib/equalizer/comb.h
@@ -30,9 +30,6 @@ public:
 	double get_snr();
 
 private:
-	gr_complex d_H[64];
-
-
 	const double alpha = 0.2;
 };
 
diff --git a/lib/equalizer/lms.h b/lib/equalizer/lms.h
index 094947f..41fd247 100644
--- a/lib/equalizer/lms.h
+++ b/lib/equalizer/lms.h
@@ -31,8 +31,6 @@ public:
 private:
 	double get_snr();
 
-
-	gr_complex d_H[64];
 	double d_snr;
 	const double alpha = 0.5;
 };
diff --git a/lib/equalizer/ls.h b/lib/equalizer/ls.h
index 2bbf68c..97aad8a 100644
--- a/lib/equalizer/ls.h
+++ b/lib/equalizer/ls.h
@@ -30,7 +30,6 @@ public:
 	virtual void equalize(gr_complex *in, int n, gr_complex *symbols, uint8_t *bits, boost::shared_ptr<gr::digital::constellation> mod);
 	virtual double get_snr();
 private:
-	gr_complex d_H[64];
 	double d_snr;
 };
 
diff --git a/lib/equalizer/sta.h b/lib/equalizer/sta.h
index bb619e7..60108f4 100644
--- a/lib/equalizer/sta.h
+++ b/lib/equalizer/sta.h
@@ -31,7 +31,6 @@ public:
 	double get_snr();
 
 private:
-	gr_complex d_H[64];
 	double d_snr;
 
 	const double alpha = 0.5;