Update default C++ program to demonstrate container files

Author: kbuffardi

Makefile

@@ -1,3 +1,8 @@
 CC=g++
 all:
-	$(CC) -Wall *.cpp
+	$(CC) -Wall *.cpp
+
+.PHONY: clean
+
+clean:
+	rm -f *.o*

main.cpp

@@ -1,10 +1,22 @@
 #include <iostream>
+#include <fstream>
 
 using std::cout;
+using std::fstream;
 
 int main()
 {
-    cout << "C++ program";
+    const char* LOGFILE = "logs/data.txt";
+    fstream output;
+    output.open(LOGFILE, std::ios::out);
+
+    if( output.is_open() )
+    {
+        cout << LOGFILE << " opened.\n";
+        output << "Program has been run! in the container!\n";
+        output.close();
+    }
+    cout << "C++ program complete.\n";
 
     return 0;
 }

test_runner.sh

@@ -1,4 +1,4 @@
 #!/bin/bash
 
-bash --version
-echo $?
+make clean && make
+./a.out