Add out_ptr (#1699)

packages/o/out_ptr/xmake.lua

@@ -0,0 +1,33 @@
+package("out_ptr")
+    set_kind("library", {headeronly = true})
+    set_homepage("https://github.com/soasis/out_ptr")
+    set_description("Repository for a C++11 implementation of std::out_ptr (p1132), as a standalone library!")
+    set_license("Apache-2.0")
+
+    add_urls("https://github.com/soasis/out_ptr.git")
+    add_versions("2022.10.07", "c9190f7febbcfcb183e34fe8449bcea80efb28d2")
+
+    on_install(function (package)
+        os.cp("include/ztd", package:installdir("include"))
+    end)
+
+    on_test(function (package)
+        assert(package:check_cxxsnippets({test = [[
+            #include <memory>
+            #include <ztd/out_ptr.hpp>
+
+            struct S {};
+
+            struct Deleter {
+                void operator()(S*) {}
+            };
+
+            void withRawPtr(S**) {}
+
+            void test() {
+                std::unique_ptr<S, Deleter> ptr;
+                withRawPtr(ztd::out_ptr::out_ptr(ptr));
+                withRawPtr(ztd::out_ptr::inout_ptr(ptr));
+            }
+        ]]}, {configs = {languages = "cxx14"}}))
+    end)