Move the test apps to a subdirectory

hello/hello-exception.cpp

@@ -0,0 +1,49 @@
+#include <iostream>
+#include <stdio.h>
+
+class Hello {
+public:
+	Hello() {
+		printf("Hello ctor\n");
+	}
+	~Hello() {
+		printf("Hello dtor\n");
+	}
+};
+
+Hello global_h;
+
+class RecurseClass {
+public:
+	RecurseClass(int v) : val(v) {
+		printf("ctor %d\n", val);
+	}
+	~RecurseClass() {
+		printf("dtor %d\n", val);
+	}
+private:
+	int val;
+};
+
+void recurse(int val) {
+	RecurseClass obj(val);
+	if (val == 0) {
+		throw std::exception();
+	}
+	if (val == 5) {
+		try {
+			recurse(val - 1);
+		} catch (std::exception& e) {
+			printf("caught exception at %d\n", val);
+		}
+	} else {
+		recurse(val - 1);
+	}
+	printf("finishing function recurse %d\n", val);
+}
+
+int main(int argc, char* argv[]) {
+	std::cout<<"Hello world C++"<<std::endl;
+	recurse(10);
+	return 0;
+}