fixed a lot of issues, now successfully runs the test with --enable-pedantic; refs #8

doc/examples/arguments.cxx

@@ -33,11 +33,7 @@ int main(int argc, char** argv) try {
 
   // bind and evaluate options
 #ifdef MRW__OLD_PRE11_COMPILER
-  mrw::args::list l;
-  mrw::args::decl::param_list pl = mrw::args::decl::param_list();
-  (mrw::args::decl::param_list())<<mrw::args::param(flag);
-  l<<mrw::args::decl("f", "flag", "check a flag", pl);
-  mrw::args::parse(argc, argv, description, mrw::args::list()
+  mrw::args::parse(argc, argv, description, mrw::args::defaults()
                    <<mrw::args::decl("h", "help", "show this help",
                                      mrw::args::decl::param_list()
                                      <<mrw::args::help()

doc/examples/smartpointer.cxx

@@ -2,6 +2,7 @@
 
 class A {
   public: int a;
+  public: virtual ~A() {}
   protected: virtual void fn() {} // dynamic_cast requires a virtual function
 };