Changeset 999cb48 in mainline for uspace/lib/cpp/include/impl/memory.hpp

Timestamp:

2018-07-05T21:41:23Z (7 years ago)

Author:

Dzejrou <dzejrou@…>

Branches:

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

Children:

edd2e61

Parents:

aedae28

git-author:

Dzejrou <dzejrou@…> (2018-05-10 00:36:39)

git-committer:

Dzejrou <dzejrou@…> (2018-07-05 21:41:23)

Message:

cpp: added hash support for smart pointers

File:

• uspace/lib/cpp/include/impl/memory.hpp (modified) (2 diffs)

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

@@ -31 +31 @@
 
 #include <internal/aux.hpp>
+#include <internal/functional/hash.hpp>
 #include <internal/memory/allocator_arg.hpp>
 #include <internal/memory/addressof.hpp>
@@ -1098 +1099 @@
         return !(nullptr < ptr);
     }
+
+    /**
+     * 20.8.2.7, smart pointer hash support:
+     */
+
+    template<class T, class D>
+    struct hash<unique_ptr<T, D>>
+    {
+        size_t operator()(const unique_ptr<T, D>& ptr) const noexcept
+        {
+            return hash<typename unique_ptr<T, D>::pointer>{}(ptr.get());
+        }
+
+        using argument_type = unique_ptr<T, D>;
+        using result_type   = size_t;
+    };
 }