add mds (#3113)

* add mds

* add test for mds

* fixed the issue of multiple compilers for templates

packages/m/mds/xmake.lua

@@ -0,0 +1,26 @@
+package("mds")
+    set_kind("library", {headeronly = true})
+    set_homepage("https://github.com/chen-qingyu/MyDataStructure")
+    set_description("A C++ containers library that is as easy to use as Python's containers library.")
+    set_license("GPL-3.0")
+
+    add_urls("https://github.com/chen-qingyu/MyDataStructure/archive/refs/tags/v$(version).zip",
+             "https://github.com/chen-qingyu/MyDataStructure.git")
+    add_versions("1.1.0", "537a1260ebdeeb1db9f94a3c44e628c04a70e4d26d5eb72f4206765717d6d680")
+
+    on_install(function (package)
+        os.cp("sources/*.hpp", package:installdir("include/mds"))
+    end)
+
+    on_test(function (package)
+        assert(package:check_cxxsnippets({test = [[
+            #include <cassert>
+            using namespace mds;
+            void test() {
+                Map<String, List<Integer>> map = {{"first", {123, 456}}, {"second", {789}}, {"second", {0}}, {"third", {"12345678987654321", 5}}};
+                assert(map.size() == 3);
+                assert(map.keys() == Set<String>({"first", "second", "third"}));
+                assert(map["third"][-1].factorial() == 120);
+            }
+        ]]}, {configs = {languages = "c++17"}, includes = "mds/mds.hpp"}))
+    end)