1 files changed, 24 insertions, 0 deletions
diff --git a/ee1301/wk5/lab4/swappy.cpp b/ee1301/wk5/lab4/swappy.cpp
new file mode 100644
index 0000000..b697ff5
--- /dev/null
+++ b/ee1301/wk5/lab4/swappy.cpp
@@ -0,0 +1,24 @@
+#include <iostream>
+using namespace std;
+
+void swap (int &a, int &b);
+int main(int argc, char* argv[])  {
+        if (argc !=2) {
+          cout << "Incorrect number of arguments! USAGE:" << endl
+	         << "     swappy <string>" << endl;;
+          return 3;
+        }
+        int i;
+        for (i=0; i<10000; i++) {
+          if (argv[1][i]=='\0') {
+            break;
+          }
+        }
+        swap(argv[1][0],argv[1][(i-1)]);
+        cout << argv[1] << endl;
+
+}
+void swap (char &a, char &b) {
+  char temp;
+  temp=a; a=b; b=temp;
+}