3 files changed, 13 insertions, 3 deletions
diff --git a/compat/borrowed-ptr-fwd.hpp b/compat/borrowed-ptr-fwd.hpp
index 8386decc..38927cc6 100644
--- a/compat/borrowed-ptr-fwd.hpp
+++ b/compat/borrowed-ptr-fwd.hpp
@@ -1,6 +1,7 @@
 #pragma once
 namespace floormat {
 
+struct bptr_base;
 template<typename T> class bptr;
 template<typename To, typename From> bptr<To> static_pointer_cast(const bptr<From>& p) noexcept;
 template<typename T> bptr(T* ptr) -> bptr<T>;
diff --git a/compat/borrowed-ptr.inl b/compat/borrowed-ptr.inl
index 68a545d6..e7b4bbbd 100644
--- a/compat/borrowed-ptr.inl
+++ b/compat/borrowed-ptr.inl
@@ -1,7 +1,6 @@
 #pragma once
 #include "borrowed-ptr.hpp"
 #include "compat/assert.hpp"
-#include <utility>
 
 #define FM_BPTR_DEBUG
 
diff --git a/test/bptr.cpp b/test/bptr.cpp
index 13c8119e..ffff5b19 100644
--- a/test/bptr.cpp
+++ b/test/bptr.cpp
@@ -365,8 +365,17 @@ void test10()
     fm_assert(!p6);
     fm_assert(p5 == p6);
 
-    (void)bptr<const bptr_base>{p6};
-    //(void)bptr<bptr_base>{p6};
+    fm_assert(!bptr<const bptr_base>{p6});
+    //fm_assert(bptr<bptr_base>{p6});
+}
+
+void test11()
+{
+    auto p1 = bptr<bptr_base>{new Foo{1}};
+    auto p2 = static_pointer_cast<Foo>(p1);
+    auto p3 = static_pointer_cast<bptr_base>(p1);
+    fm_assert(p2->x == 1);
+    fm_assert(p3);
 }
 
 } // namespace
@@ -383,6 +392,7 @@ void Test::test_bptr()
     test8();
     test9();
     test10();
+    test11();
 }
 
 } // namespace floormat