From d74eef3beb52d29c497e24e9b26d8ff83946793d Mon Sep 17 00:00:00 2001
From: Chris Fairles <chris.fairles@gmail.com>
Date: Thu, 4 Sep 2008 14:35:54 +0000
Subject: [PATCH] mutex (once_flag): Construct __gthread_once_t in a temporary
variable before assigning to _M_once...
2008-09-04 Chris Fairles <chris.fairles@gmail.com>
* include/std/mutex (once_flag): Construct __gthread_once_t in a
temporary variable before assigning to _M_once to avoid initialization
errors.
From-SVN: r139986
---
libstdc++-v3/ChangeLog | 6 ++++++
libstdc++-v3/include/std/mutex | 6 ++++--
2 files changed, 10 insertions(+), 2 deletions(-)
diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index c1ef36c5ba8b..fa5059e25e8d 100644
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,3 +1,9 @@
+2008-09-04 Chris Fairles <chris.fairles@gmail.com>
+
+ * include/std/mutex (once_flag): Construct __gthread_once_t in a
+ temporary variable before assigning to _M_once to avoid initialization
+ errors.
+
2008-09-03 Paolo Carlini <paolo.carlini@oracle.com>
* config/abi/pre/gnu.ver: Also export __once_functor_lock; tighten
diff --git a/libstdc++-v3/include/std/mutex b/libstdc++-v3/include/std/mutex
index 5e6ba9c27155..e4ceaf2aac89 100644
--- a/libstdc++-v3/include/std/mutex
+++ b/libstdc++-v3/include/std/mutex
@@ -615,8 +615,10 @@ namespace std
typedef __gthread_once_t __native_type;
once_flag()
- : _M_once(__GTHREAD_ONCE_INIT)
- { }
+ {
+ __gthread_once_t __tmp = __GTHREAD_ONCE_INIT;
+ _M_once = __tmp;
+ }
once_flag(const once_flag&) = delete;
once_flag& operator=(const once_flag&) = delete;
--
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