Changeset 1995ac3 in mainline

Timestamp:

2019-06-28T15:19:34Z (5 years ago)

Author:

Jaroslav Jindrak <dzejrou@…>

Branches:

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

Children:

627dc41

Parents:

046b66e

Message:

cpp: fix zero length tuples

File:

• uspace/lib/cpp/include/__bits/tuple/tuple.hpp (modified) (1 diff)

uspace/lib/cpp/include/__bits/tuple/tuple.hpp

@@ -433 +433 @@
     };
 
+    template<>
+    class tuple<>
+    {
+        /**
+         * In some cases, e.g. for async() calls
+         * without argument to the functors, we need
+         * zero length tuples, which are provided by
+         * the following specialization.
+         * (Without it we get a resolution conflict between
+         * the default constructor and the Ts... constructor
+         * in the original tuple.)
+         */
+
+        tuple() = default;
+
+        void swap(tuple&) noexcept
+        { /* DUMMY BODY */ }
+    };
+
     /**
      * 20.4.2.7, relational operators: