From 19fcec84d8d7d21e796c7624e521b60d28ee21ed Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sun, 7 Apr 2024 20:45:59 +0200
Subject: Adding upstream version 16.2.11+ds.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 .../libs/python/test/test_pointer_adoption.cpp     | 125 +++++++++++++++++++++
 1 file changed, 125 insertions(+)
 create mode 100644 src/boost/libs/python/test/test_pointer_adoption.cpp

(limited to 'src/boost/libs/python/test/test_pointer_adoption.cpp')

diff --git a/src/boost/libs/python/test/test_pointer_adoption.cpp b/src/boost/libs/python/test/test_pointer_adoption.cpp
new file mode 100644
index 000000000..a4e14af5d
--- /dev/null
+++ b/src/boost/libs/python/test/test_pointer_adoption.cpp
@@ -0,0 +1,125 @@
+// Copyright David Abrahams 2002.
+// Distributed under the Boost Software License, Version 1.0. (See
+// accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+#include <boost/python/module.hpp>
+#include <boost/python/def.hpp>
+#include <boost/python/return_value_policy.hpp>
+#include <boost/python/manage_new_object.hpp>
+#include <boost/python/return_internal_reference.hpp>
+#include <boost/python/class.hpp>
+
+using namespace boost::python;
+
+int a_instances = 0;
+
+int num_a_instances() { return a_instances; }
+
+struct inner
+{
+    inner(std::string const& s)
+        : s(s)
+    {}
+
+    void change(std::string const& new_s)
+    {
+        this->s = new_s;
+    }
+
+    std::string s;
+};
+
+struct Base
+{
+    virtual ~Base() {}
+};
+
+struct A : Base
+{
+    A(std::string const& s)
+        : x(s)
+    {
+        ++a_instances;
+    }
+
+    ~A()
+    {
+        --a_instances;
+    }
+
+    std::string content() const
+    {
+        return x.s;
+    }
+
+    inner& get_inner()
+    {
+        return x;
+    }
+
+    inner x;
+};
+
+struct B
+{
+    B() : x(0) {}
+    B(A* x_) : x(x_) {}
+
+    inner const* adopt(A* _x) { this->x = _x; return &_x->get_inner(); }
+
+    std::string a_content()
+    {
+        return x ? x->content() : std::string("empty");
+    }
+
+    A* x;
+};
+
+
+A* create(std::string const& s)
+{
+    return new A(s);
+}
+
+A* as_A(Base* b)
+{
+    return dynamic_cast<A*>(b);
+}
+
+BOOST_PYTHON_MODULE(test_pointer_adoption_ext)
+{
+    def("num_a_instances", num_a_instances);
+
+        // Specify the manage_new_object return policy to take
+        // ownership of create's result
+    def("create", create, return_value_policy<manage_new_object>());
+
+    def("as_A", as_A, return_internal_reference<>());
+
+    class_<Base>("Base")
+        ;
+
+    class_<A, bases<Base> >("A", no_init)
+        .def("content", &A::content)
+        .def("get_inner", &A::get_inner, return_internal_reference<>())
+        ;
+
+    class_<inner>("inner", no_init)
+        .def("change", &inner::change)
+        ;
+
+    class_<B>("B")
+        .def(init<A*>()[with_custodian_and_ward_postcall<1,2>()])
+
+        .def("adopt", &B::adopt
+             // Adopt returns a pointer referring to a subobject of its 2nd argument (1st being "self")
+             , return_internal_reference<2
+             // Meanwhile, self holds a reference to the 2nd argument.
+             , with_custodian_and_ward<1,2> >()
+            )
+
+         .def("a_content", &B::a_content)
+        ;
+}
+
+#include "module_tail.cpp"
-- 
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