Changeset 2c223a9d in mainline for uspace/lib/cpp/include/impl/functional.hpp

Timestamp:

2018-07-05T21:41:22Z (6 years ago)

Author:

Dzejrou <dzejrou@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

a30c04d

Parents:

72f5379e

git-author:

Dzejrou <dzejrou@…> (2018-05-03 22:05:41)

git-committer:

Dzejrou <dzejrou@…> (2018-07-05 21:41:22)

Message:

cpp: added mem_fn

File:

• uspace/lib/cpp/include/impl/functional.hpp (modified) (1 diff)

uspace/lib/cpp/include/impl/functional.hpp

@@ -786 +786 @@
      */
 
-    // TODO: void should be /unspecified/
+    namespace aux
+    {
+        template<class F>
+        class mem_fn_t
+        {
+            // TODO: conditional typedefs
+            public:
+                mem_fn_t(F f)
+                    : func_{f}
+                { /* DUMMY BODY */ }
+
+                template<class... Args>
+                decltype(auto) operator()(Args&&... args)
+                {
+                    return invoke(func_, forward<Args>(args)...);
+                }
+
+            private:
+                F func_;
+        };
+    }
+
     template<class R, class T>
-    void mem_fn(R T::* f);
+    aux::mem_fn_t<R T::*> mem_fn(R T::* f)
+    {
+        return aux::mem_fn_t<R T::*>{f};
+    }
 
     /**