1 files changed, 96 insertions, 0 deletions
diff --git a/gr-fec/lib/gf2vec.cc b/gr-fec/lib/gf2vec.cc
new file mode 100644
index 0000000000..e5c80adb7e
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+++ b/gr-fec/lib/gf2vec.cc
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+/*!
+ * \file
+ * \brief Implementation of a class for GF2 vector algebra
+ * \author Manu T S
+ *
+ * -----------------------------------------------------------------
+ *
+ * Copyright 2013 IIT Bombay.
+ * 
+ * This is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
+ * 
+ * This software 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 software; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ *
+ * -----------------------------------------------------------------
+ */
+
+#include <gnuradio/fec/gf2vec.h>
+#include <iostream>
+
+GF2Vec::GF2Vec(int size) {
+    vec.resize(size);
+    for( int i = 0; i < size; i++) {
+        vec[i] = char(0);
+    }
+}
+
+void GF2Vec::set_vec(const std::vector<char> in) {
+    resize(in.size());
+    for ( int i = 0; i < vec.size(); i++ ) {
+        vec[i] = in[i];
+    }
+}
+
+std::vector<char> GF2Vec::get_vec(){
+    return vec;
+}
+
+int GF2Vec::size() {
+    return vec.size();
+}
+
+char & GF2Vec::operator[](int i) {
+    return vec[i];
+}
+
+GF2Vec operator+(GF2Vec a, GF2Vec b) {
+    GF2Vec sum(a.size());
+    for( int i = 0; i < sum.size(); i++) {
+        sum[i] = a[i] ^ b[i];
+    }
+    return sum;
+}
+
+GF2Vec GF2Vec::sub_vector(int from, int to) {
+    int len = to - from;
+    GF2Vec x(len);
+    for ( int i = 0; i < len; i++ ) {
+        x[i] = vec[i + from];
+    }
+    return x;
+}
+
+char operator*(GF2Vec a, GF2Vec b) {
+    char sum;
+    sum = char(0);
+    for (int i = 0; i < a.size(); i++) {
+        sum = sum ^ ( a[i] & b[i] );
+    }
+    return sum;
+}
+
+void GF2Vec::print_vec() {
+    for (int i = 0; i < size(); i++ ) {
+        std::cout << int(vec[i]) << " ";
+    }
+    std::cout << '\n';
+}
+
+void GF2Vec::resize(int size) {
+    vec.resize(size);
+}
+
+void GF2Vec::operator=(GF2Vec x) {
+    set_vec(x.get_vec());
+}