diff --git a/source/stdcpp/set.d b/source/stdcpp/set.d
index ef7f6b2..8158bf9 100644
--- a/source/stdcpp/set.d
+++ b/source/stdcpp/set.d
@@ -36,6 +36,7 @@ extern(C++, class) struct set(Key, compare, Alloc)
 
     version (CppRuntime_Gcc)
     {
+        ///
         this(const ref allocator!(Key));
         ///
         extern(D) this(const compare comp)
diff --git a/source/stdcpp/test/set.d b/source/stdcpp/test/set.d
index ef4f424..b5ddff3 100644
--- a/source/stdcpp/test/set.d
+++ b/source/stdcpp/test/set.d
@@ -9,38 +9,41 @@ module stdcpp.test.set;
 import stdcpp.set;
 import stdcpp.test.base;
 
-unittest
+version (CppRuntime_Gcc)
 {
-    assert(cppSizeOf!(vector!int) == vector!int.sizeof);
-}
+    unittest
+    {
+        assert(cppSizeOf!(set!int) == set!int.sizeof);
+    }
 
-unittest
-{
-    import stdcpp.allocator;
-    allocator!int alloc_instance = allocator!(int).init;
-    less!int a;
-    auto p = set!int(a);
-    p.insert(5);
-    assert(p.size == 1);
-    assert(p.empty == 0);
-    p.erase(5);
-    p.insert(6);
-    p.clear;
-    assert(p.size == 0);
-    assert(p.empty == 1);
-    set!int q = a;
-    q.swap(p);
-    q.insert(4);
-    q.insert(4);
-    q.insert(4);
-    assert(q.size == 1);
-    assert(q.count(4) == 1);//count for set only results in 0 for not present or 1 for present
-    assert(q.count(5) == 0);
-    assert(q.contains(4) == 1); // q contains 4 evaluates to true
-    auto iter = q.find(4);
-    set!int w = q; //copy constructor
-    assert(w.size() == 1);
-    auto alloc = set!int(alloc_instance);
-    alloc.insert(5);
-    assert(alloc.size() == 1);
+    unittest
+    {
+        import stdcpp.allocator;
+        allocator!int alloc_instance = allocator!(int).init;
+        less!int a;
+        auto p = set!int(a);
+        p.insert(5);
+        assert(p.size == 1);
+        assert(p.empty == 0);
+        p.erase(5);
+        p.insert(6);
+        p.clear;
+        assert(p.size == 0);
+        assert(p.empty == 1);
+        set!int q = a;
+        q.swap(p);
+        q.insert(4);
+        q.insert(4);
+        q.insert(4);
+        assert(q.size == 1);
+        assert(q.count(4) == 1);//count for set only results in 0 for not present or 1 for present
+        assert(q.count(5) == 0);
+        assert(q.contains(4) == 1); // q contains 4 evaluates to true
+        auto iter = q.find(4);
+        set!int w = q; //copy constructor
+        assert(w.size() == 1);
+        auto alloc = set!int(alloc_instance);
+        alloc.insert(5);
+        assert(alloc.size() == 1);
+    }
 }
\ No newline at end of file