added testcase for issue #187
diff --git a/example/issues.cpp b/example/issues.cpp
index 8fc90f4..5c8c369 100644
--- a/example/issues.cpp
+++ b/example/issues.cpp
@@ -10,6 +10,8 @@
#include "example.h"
#include <pybind11/stl.h>
+PYBIND11_DECLARE_HOLDER_TYPE(T, std::shared_ptr<T>);
+
void init_issues(py::module &m) {
py::module m2 = m.def_submodule("issues");
@@ -20,7 +22,9 @@
m2.def("print_char", [](char c) { std::cout << c << std::endl; });
// #159: virtual function dispatch has problems with similar-named functions
- struct Base { virtual void dispatch(void) const = 0; };
+ struct Base { virtual void dispatch(void) const {
+ /* for some reason MSVC2015 can't compile this if the function is pure virtual */
+ }; };
struct DispatchIssue : Base {
virtual void dispatch(void) const {
@@ -58,4 +62,33 @@
m2.def("iterator_passthrough", [](py::iterator s) -> py::iterator {
return py::make_iterator(std::begin(s), std::end(s));
});
-}
+
+ // #187: issue involving std::shared_ptr<> return value policy & garbage collection
+ struct ElementBase { virtual void foo() { } /* Force creation of virtual table */ };
+ struct ElementA : ElementBase {
+ ElementA(int v) : v(v) { }
+ int value() { return v; }
+ int v;
+ };
+
+ struct ElementList {
+ void add(std::shared_ptr<ElementBase> e) { l.push_back(e); }
+ std::vector<std::shared_ptr<ElementBase>> l;
+ };
+
+ py::class_<ElementBase, std::shared_ptr<ElementBase>> (m2, "ElementBase");
+
+ py::class_<ElementA, std::shared_ptr<ElementA>>(m2, "ElementA", py::base<ElementBase>())
+ .def(py::init<int>())
+ .def("value", &ElementA::value);
+
+ py::class_<ElementList, std::shared_ptr<ElementList>>(m2, "ElementList")
+ .def(py::init<>())
+ .def("add", &ElementList::add)
+ .def("get", [](ElementList &el){
+ py::list list;
+ for (auto &e : el.l)
+ list.append(py::cast(e));
+ return list;
+ });
+};