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>
---
 src/boost/libs/python/test/select_holder.cpp | 76 ++++++++++++++++++++++++++++
 1 file changed, 76 insertions(+)
 create mode 100644 src/boost/libs/python/test/select_holder.cpp

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

diff --git a/src/boost/libs/python/test/select_holder.cpp b/src/boost/libs/python/test/select_holder.cpp
new file mode 100644
index 000000000..8650bd06a
--- /dev/null
+++ b/src/boost/libs/python/test/select_holder.cpp
@@ -0,0 +1,76 @@
+// 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/object/class_metadata.hpp>
+#include <boost/python/has_back_reference.hpp>
+#include <boost/python/detail/not_specified.hpp>
+#include <boost/static_assert.hpp>
+#include <boost/python/detail/type_traits.hpp>
+#include <boost/function/function0.hpp>
+#include <boost/mpl/bool.hpp>
+#include <memory>
+
+struct BR {};
+
+struct Base {};
+struct Derived : Base {};
+
+namespace boost { namespace python
+{
+  // specialization
+  template <>
+  struct has_back_reference<BR>
+    : mpl::true_
+  {
+  };
+}} // namespace boost::python
+
+template <class T, class U>
+void assert_same(U* = 0, T* = 0)
+{
+    BOOST_STATIC_ASSERT((boost::python::detail::is_same<T,U>::value));
+    
+}
+
+template <class T, class Held, class Holder>
+void assert_holder(T* = 0, Held* = 0, Holder* = 0)
+{
+    using namespace boost::python::detail;
+    using namespace boost::python::objects;
+    
+    typedef typename class_metadata<
+       T,Held,not_specified,not_specified
+           >::holder h;
+    
+    assert_same<Holder>(
+        (h*)0
+    );
+}
+
+int test_main(int, char * [])
+{
+    using namespace boost::python::detail;
+    using namespace boost::python::objects;
+
+    assert_holder<Base,not_specified,value_holder<Base> >();
+
+    assert_holder<BR,not_specified,value_holder_back_reference<BR,BR> >();
+    assert_holder<Base,Base,value_holder_back_reference<Base,Base> >();
+    assert_holder<BR,BR,value_holder_back_reference<BR,BR> >();
+
+    assert_holder<Base,Derived
+        ,value_holder_back_reference<Base,Derived> >();
+
+    assert_holder<Base,std::auto_ptr<Base>
+        ,pointer_holder<std::auto_ptr<Base>,Base> >();
+    
+    assert_holder<Base,std::auto_ptr<Derived>
+        ,pointer_holder_back_reference<std::auto_ptr<Derived>,Base> >();
+
+    assert_holder<BR,std::auto_ptr<BR>
+        ,pointer_holder_back_reference<std::auto_ptr<BR>,BR> > ();
+
+    return 0;
+}
+
-- 
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