[libcxx-commits] [PATCH] D154590: [libc++] mark barrier constructor as explicit in <barrier>

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diamante0018 updated this revision to Diff 539231.
diamante0018 retitled this revision from "[libc++] mark barrier constructor as constexpr and explicit in <barrier>" to "[libc++] mark barrier constructor as explicit in <barrier>".
diamante0018 edited the summary of this revision.
diamante0018 added a comment.

Only apply "explicit"


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D154590/new/

https://reviews.llvm.org/D154590

Files:
  libcxx/include/barrier
  libcxx/test/std/thread/thread.barrier/ctor.pass.cpp


Index: libcxx/test/std/thread/thread.barrier/ctor.pass.cpp
===================================================================
--- /dev/null
+++ libcxx/test/std/thread/thread.barrier/ctor.pass.cpp
@@ -0,0 +1,30 @@
+//===----------------------------------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+//
+// UNSUPPORTED: no-threads
+// UNSUPPORTED: c++03, c++11
+
+// XFAIL: availability-synchronization_library-missing
+
+// <barrier>
+
+// explicit barrier(ptrdiff_t __count, _CompletionF __completion = _CompletionF());
+
+// Make sure that the ctor of barrier is explicit.
+
+#include <barrier>
+
+#include "test_convertible.h"
+
+static_assert(!test_convertible<std::barrier<>, std::ptrdiff_t>(), "This constructor must be explicit");
+
+int main(int, char**) {
+  // Nothing to do
+
+  return 0;
+}
Index: libcxx/include/barrier
===================================================================
--- libcxx/include/barrier
+++ libcxx/include/barrier
@@ -298,7 +298,7 @@
     }
 
     _LIBCPP_AVAILABILITY_SYNC _LIBCPP_INLINE_VISIBILITY
-    barrier(ptrdiff_t __count, _CompletionF __completion = _CompletionF())
+    explicit barrier(ptrdiff_t __count, _CompletionF __completion = _CompletionF())
         : __b_(__count, _VSTD::move(__completion)) {
     }
 


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