From: Jonathan Wakely <jwakely@redhat.com>
Date: Tue, 10 May 2016 13:09:22 +0000 (+0100)
Subject: Optimize __directory_iterator_proxy for the common case
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=77a87b2a0e5fb069107479d1e2bd3efafd6bd3ab;p=gcc.git

Optimize __directory_iterator_proxy for the common case

	* include/experimental/bits/fs_dir.h (__directory_iterator_proxy):
	Overload operator* to move from rvalues.

From-SVN: r236078
---

diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index 20c55ff4d5e..7aaeefaa518 100644
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,5 +1,8 @@
 2016-05-10  Jonathan Wakely  <jwakely@redhat.com>
 
+	* include/experimental/bits/fs_dir.h (__directory_iterator_proxy):
+	Overload operator* to move from rvalues.
+
 	PR libstdc++/71036
 	* src/filesystem/ops.cc (create_dir): Handle EEXIST from mkdir.
 	* testsuite/experimental/filesystem/operations/create_directory.cc:
diff --git a/libstdc++-v3/include/experimental/bits/fs_dir.h b/libstdc++-v3/include/experimental/bits/fs_dir.h
index 5fd41c2127f..011d3981622 100644
--- a/libstdc++-v3/include/experimental/bits/fs_dir.h
+++ b/libstdc++-v3/include/experimental/bits/fs_dir.h
@@ -158,7 +158,9 @@ _GLIBCXX_BEGIN_NAMESPACE_CXX11
 
   struct __directory_iterator_proxy
   {
-    const directory_entry& operator*() const noexcept { return _M_entry; }
+    const directory_entry& operator*() const& noexcept { return _M_entry; }
+
+    directory_entry operator*() && noexcept { return std::move(_M_entry); }
 
   private:
     friend class directory_iterator;