Add initializing image constructor

include/boost/gil/extension/dynamic_image/any_image.hpp

@@ -1,5 +1,6 @@
 //
 // Copyright 2005-2007 Adobe Systems Incorporated
+// Copyright 2020 Samuel Debionne
 //
 // Distributed under the Boost Software License, Version 1.0
 // See accompanying file LICENSE_1_0.txt or copy at
@@ -100,6 +101,9 @@ class any_image : public variant2::variant<Images...>
 
     template <typename Image>
     explicit any_image(Image const& img) : parent_t(img) {}
+
+    template <typename Image>
+    any_image(Image&& img) : parent_t(std::move(img)) {}
 
     template <typename Image>
     explicit any_image(Image& img, bool do_swap) : parent_t(img, do_swap) {}

test/extension/dynamic_image/CMakeLists.txt

@@ -7,6 +7,7 @@
 #
 message(STATUS "Boost.GIL: Configuring tests in test/extension/dynamic_image")
 foreach(_name
+  any_image
   subimage_view)
   set(_test t_ext_dynamic_image_${_name})
   set(_target test_ext_dynamic_image_${_name})

test/extension/dynamic_image/Jamfile

@@ -10,4 +10,5 @@ import testing ;
 
 alias headers : [ generate_self_contained_headers extension/dynamic_image ] ;
 
+run any_image.cpp ;
 run subimage_view.cpp ;

test/extension/dynamic_image/any_image.cpp

@@ -0,0 +1,45 @@
+//
+// Copyright 2020 Samuel Debionne
+//
+// 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/gil.hpp>
+#include <boost/gil/extension/dynamic_image/any_image.hpp>
+
+#include <boost/core/lightweight_test.hpp>
+
+#include "test_fixture.hpp"
+#include "core/image/test_fixture.hpp"
+
+namespace gil = boost::gil;
+namespace fixture = boost::gil::test::fixture;
+
+struct test_any_image_move_ctor
+{
+    template <typename Image>
+    void operator()(Image const&)
+    {
+        using image_t = Image;
+        fixture::dynamic_image i0(fixture::create_image<image_t>(4, 4, 128));
+        BOOST_TEST_EQ(i0.dimensions().x, 4);
+        BOOST_TEST_EQ(i0.dimensions().y, 4);
+
+        fixture::dynamic_image i1 = fixture::create_image<image_t>(4, 4, 128);
+        BOOST_TEST_EQ(i1.dimensions().x, 4);
+        BOOST_TEST_EQ(i1.dimensions().y, 4);
+    }
+    static void run()
+    {
+        boost::mp11::mp_for_each<fixture::image_types>(test_any_image_move_ctor{});
+    }
+};
+
+
+int main()
+{
+    test_any_image_move_ctor::run();
+
+    return ::boost::report_errors();
+}