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concurrence.h: Use __GCC_HAVE_SYNC_COMPARE_AND_SWAP_*.

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2007-05-24  Paolo Carlini  <pcarlini@suse.de>

	* include/ext/concurrence.h: Use __GCC_HAVE_SYNC_COMPARE_AND_SWAP_*.

From-SVN: r125044
This commit is contained in:
Paolo Carlini 2007-05-24 22:18:07 +00:00
parent 88d1c2ad47
commit 8679a8ef55
2 changed files with 8 additions and 5 deletions
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6
libstdc++-v3/ChangeLog
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@ -1,4 +1,8 @@
2007-05-23 Steve Ellcey <sje@cup.hp.com>
2007-05-24 Paolo Carlini <pcarlini@suse.de>
* include/ext/concurrence.h: Use __GCC_HAVE_SYNC_COMPARE_AND_SWAP_*.
2007-05-24 Steve Ellcey <sje@cup.hp.com>
* Makefile.in: Regenerate.
* configure: Regenerate.

7
libstdc++-v3/include/ext/concurrence.h
View File

@ -53,9 +53,8 @@ _GLIBCXX_BEGIN_NAMESPACE(__gnu_cxx)
// the current configuration.
static const _Lock_policy __default_lock_policy =
#ifdef __GTHREADS
// NB: This macro doesn't actually exist yet in the compiler, but is
// set somewhat haphazardly at configure time.
#ifdef _GLIBCXX_ATOMIC_BUILTINS
#if (defined(__GCC_HAVE_SYNC_COMPARE_AND_SWAP_2) \
&& defined(__GCC_HAVE_SYNC_COMPARE_AND_SWAP_4))
_S_atomic;
#else
_S_mutex;
@ -63,7 +62,7 @@ _GLIBCXX_BEGIN_NAMESPACE(__gnu_cxx)
#else
_S_single;
#endif
// NB: As this is used in libsupc++, need to only depend on
// exception. No stdexception classes, no use of std::string.
class __concurrence_lock_error : public std::exception