add lab3

lab3/test_grid2DIO.cpp

@@ -0,0 +1,53 @@
+// Test read and write functions in grid2DIO.py.
+// Mainly for an example of reading and writing a GRID2D_POINTS3D array
+
+#include <iostream>
+#include <string>
+
+#include "grid2DPoints3D.h"
+#include "grid2DIO.h"
+
+
+// ********************* Functions ************************************
+
+void UsageMsg(const std::string& command_name) {
+    std::cerr << "Usage: " << command_name << " {infile} {outfile}\n";
+}
+
+
+// ********************* Main *****************************************
+
+int main(int argc, char* argv[]) {
+
+    using namespace std;
+  
+    if (argc != 3) {
+        UsageMsg(argv[0]);
+        return 0;
+    }
+
+    GRID2D_POINTS3D grid2D;
+
+    try {
+        cout << "Reading " << argv[1] << "." << endl;
+        OpenReadGrid2DPoints3D(argv[1], grid2D);
+    }
+    catch (const exception&) {
+        cerr << "Exiting...\n";
+        return -1;
+    }
+
+    try {
+        cout << "Copying to file " << argv[2] << ".";
+        vector<string> comment_list;
+        string s = string("Copy of ") + argv[1] + ".";
+        comment_list.push_back(s);
+        OpenWriteGrid2DPoints3D(argv[2], grid2D, comment_list);
+    }
+    catch (const exception&) {
+        cerr << "Exiting...\n";
+        return -1;
+    }    
+
+    return 0;
+}