initial upload

examples/spmat_ex.cpp

@@ -0,0 +1,86 @@
+/********************************************************
+ *  ██████╗  ██████╗████████╗██╗
+ * ██╔════╝ ██╔════╝╚══██╔══╝██║
+ * ██║  ███╗██║        ██║   ██║
+ * ██║   ██║██║        ██║   ██║
+ * ╚██████╔╝╚██████╗   ██║   ███████╗
+ *  ╚═════╝  ╚═════╝   ╚═╝   ╚══════╝
+ * Geophysical Computational Tools & Library (GCTL)
+ *
+ * Copyright (c) 2022  Yi Zhang (yizhang-geo@zju.edu.cn)
+ *
+ * GCTL is distributed under a dual licensing scheme. You can redistribute 
+ * it and/or modify it under the terms of the GNU Lesser General Public 
+ * License as published by the Free Software Foundation, either version 2 
+ * of the License, or (at your option) any later version. You should have 
+ * received a copy of the GNU Lesser General Public License along with this 
+ * program. If not, see <http://www.gnu.org/licenses/>.
+ * 
+ * If the terms and conditions of the LGPL v.2. would prevent you from using 
+ * the GCTL, please consider the option to obtain a commercial license for a 
+ * fee. These licenses are offered by the GCTL's original author. As a rule, 
+ * licenses are provided "as-is", unlimited in time for a one time fee. Please 
+ * send corresponding requests to: yizhang-geo@zju.edu.cn. Please do not forget 
+ * to include some description of your company and the realm of its activities. 
+ * Also add information on how to contact you by electronic and paper mail.
+ ******************************************************/
+
+#include "gctl/core.h"
+
+int main(int argc, char const *argv[])
+{
+	gctl::spmat<double> M(10, 10, 0.0);
+
+	M.insert(3, 3, 1.3);
+	M.insert(8, 1, 2.8);
+	M.insert(2, 6, 4.2);
+	M.insert(5, 6, 4.6);
+	M.insert(2, 3, 7.2);
+	M.insert(5, 9, 2.2);
+	M.insert(2, 9, 5.4);
+	M.insert(7, 4, 8.5);
+	M.insert(0, 4, 0.0);
+	M.insert(7, 6, 0.0);
+
+	M.show_matrix();
+	M.show_list();
+
+	std::cout << "M.at(4, 4) = " << M.at(4, 4) << std::endl;
+	std::cout << "M.at(5, 9) = " << M.at(5, 9) << std::endl;
+
+	gctl::spmat<double> N = M; // 等效语句 gctl::spmat<double> N(M);
+	N.remove(2, 3);
+	N.remove(3, 3);
+	N.show_matrix();
+
+	for (int i = 0; i < N.row_size(); i++)
+	{
+		std::cout << "row size " << i << " = " << N.ele_size(i) <<  std::endl;
+	}
+
+	for (int i = 0; i < N.col_size(); i++)
+	{
+		std::cout << "col size " << i << " = " << N.ele_size(i, gctl::ColMajor) << std::endl;
+	}
+
+	N.minus_sparse_matrix(M);
+
+	N.show_matrix();
+	for (int i = 0; i < N.row_size(); i++)
+	{
+		std::cout << "row size " << i << " = " << N.ele_size(i) << std::endl;
+	}
+
+	for (int i = 0; i < N.col_size(); i++)
+	{
+		std::cout << "col size " << i << " = " << N.ele_size(i, gctl::ColMajor) << std::endl;
+	}
+
+	//for (int i = 0; i < N.col_size(); i++)
+	//{
+	//	std::cout << "col size " << i << " = " << N.ele_size(i, gctl::SpMatColMajor) << std::endl;
+	//}
+	
+	//N.show_full();
+	return 0;
+}