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Optimize __directory_iterator_proxy for the common case 

Backport from mainline
2016-05-10  Jonathan Wakely  <jwakely@redhat.com>

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

From-SVN: r236716
This commit is contained in:
Jonathan Wakely 2016-05-25 16:43:06 +01:00 committed by Jonathan Wakely
parent d67dba4a96
commit 515e1860d3
2 changed files with 11 additions and 1 deletions
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8
libstdc++-v3/ChangeLog
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@ -1,3 +1,11 @@
2016-05-25 Jonathan Wakely <jwakely@redhat.com>
Backport from mainline
2016-05-10 Jonathan Wakely <jwakely@redhat.com>
* include/experimental/bits/fs_dir.h (__directory_iterator_proxy):
Overload operator* to move from rvalues.
2016-05-25 Jonathan Wakely <jwakely@redhat.com> 2016-05-25 Jonathan Wakely <jwakely@redhat.com>
Backport from mainline Backport from mainline

4
libstdc++-v3/include/experimental/fs_dir.h
View File

@ -158,7 +158,9 @@ _GLIBCXX_BEGIN_NAMESPACE_CXX11
struct __directory_iterator_proxy 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: private:
friend class directory_iterator; friend class directory_iterator;