Merge pull request #213 from yungyuc/yyc-args

pybind11::args should have been derived from tuple

example/example11.cpp

@@ -27,8 +27,8 @@ py::object call_kw_func(py::function f) {
 }
 
 void args_function(py::args args) {
-    for (auto item : args)
-        std::cout << "got argument: " << item << std::endl;
+    for (size_t it=0; it<args.size(); ++it)
+        std::cout << "got argument: " << py::object(args[it]) << std::endl;
 }
 
 void args_kwargs_function(py::args args, py::kwargs kwargs) {

include/pybind11/pytypes.h

@@ -491,7 +491,7 @@ public:
         if (!m_ptr) pybind11_fail("Could not allocate tuple object!");
     }
     size_t size() const { return (size_t) PyTuple_Size(m_ptr); }
-    detail::tuple_accessor operator[](size_t index) const { return detail::tuple_accessor(ptr(), index); }
+    detail::tuple_accessor operator[](size_t index) const { return detail::tuple_accessor(*this, index); }
 };
 
 class dict : public object {
@@ -517,7 +517,7 @@ public:
     void append(const object &object) const { PyList_Append(m_ptr, object.ptr()); }
 };
 
-class args : public list { PYBIND11_OBJECT_DEFAULT(args, list, PyList_Check) };
+class args : public tuple { PYBIND11_OBJECT_DEFAULT(args, tuple, PyTuple_Check) };
 class kwargs : public dict { PYBIND11_OBJECT_DEFAULT(kwargs, dict, PyDict_Check)  };
 
 class set : public object {