atomic.cc: Use noexcept.

2011-08-04  Paolo Carlini  <paolo.carlini@oracle.com>

	* src/atomic.cc: Use noexcept.
	* include/std/atomic: Likewise.
	* include/bits/atomic_0.h: Likewise.
	* include/bits/atomic_2.h: Likewise.
	* include/bits/atomic_base.h: Likewise.

From-SVN: r177413

libstdc++-v3/ChangeLog

+2011-08-04  Paolo Carlini  <paolo.carlini@oracle.com>
+
+	* src/atomic.cc: Use noexcept.
+	* include/std/atomic: Likewise.
+	* include/bits/atomic_0.h: Likewise.
+	* include/bits/atomic_2.h: Likewise.
+	* include/bits/atomic_base.h: Likewise.
+
 2011-08-03  Benjamin Kosnik  <bkoz@redhat.com>
 
 	* testsuite/performance/27_io/filebuf_sputn_unbuf.cc: Include

libstdc++-v3/include/bits/atomic_base.h

@@ -59,7 +59,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
     } memory_order;
 
   inline memory_order
-  __calculate_memory_order(memory_order __m)
+  __calculate_memory_order(memory_order __m) noexcept
   {
     const bool __cond1 = __m == memory_order_release;
     const bool __cond2 = __m == memory_order_acq_rel;
@@ -69,15 +69,15 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
   }
 
   void
-  atomic_thread_fence(memory_order);
+  atomic_thread_fence(memory_order) noexcept;
 
   void
-  atomic_signal_fence(memory_order);
+  atomic_signal_fence(memory_order) noexcept;
 
   /// kill_dependency
   template<typename _Tp>
     inline _Tp
-    kill_dependency(_Tp __y)
+    kill_dependency(_Tp __y) noexcept
     {
       _Tp __ret(__y);
       return __ret;

libstdc++-v3/src/atomic.cc

 // Support for atomic operations -*- C++ -*-
 
-// Copyright (C) 2008, 2009, 2010
+// Copyright (C) 2008, 2009, 2010, 2011
 // Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
@@ -56,7 +56,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
   namespace __atomic0
   {
     bool
-    atomic_flag::test_and_set(memory_order)
+    atomic_flag::test_and_set(memory_order) noexcept
     {
 #if defined(_GLIBCXX_HAS_GTHREADS) && defined(_GLIBCXX_USE_C99_STDINT_TR1)
       lock_guard<mutex> __lock(get_atomic_mutex());
@@ -67,7 +67,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
     }
 
     void
-    atomic_flag::clear(memory_order)
+    atomic_flag::clear(memory_order) noexcept
     {
 #if defined(_GLIBCXX_HAS_GTHREADS) && defined(_GLIBCXX_USE_C99_STDINT_TR1)
       lock_guard<mutex> __lock(get_atomic_mutex());