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[libstdc++-v3,parallel,mode] Enable user-defined swap

Message ID 4D550B65.4050000@kit.edu
State New
Headers show

Commit Message

Johannes Singler Feb. 11, 2011, 10:11 a.m. UTC 
On 01/24/2011 06:07 PM, Johannes Singler wrote:
> The following patch enables user-defined swap for parallel sorting
> and the like, which can improve performance.

There was still one "using std::swap" missing.

Tested x86_64-unknown-linux-gnu: No regressions

Committed to mainline as obvious.

2011-02-11  Johannes Singler  <singler@kit.edu>

         PR libstdc++/47433
         * include/parallel/losertree.h
         (_LoserTreeUnguarded<>::__delete_min_insert):
         Add missing "using std::swap;", as for other variants.

Johannes
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Patch

Index: include/parallel/losertree.h
===================================================================
--- include/parallel/losertree.h	(revision 170044)
+++ include/parallel/losertree.h	(working copy)
@@ -775,6 +775,7 @@ 
       void
       __delete_min_insert(_Tp __key, bool)
       {
+        using std::swap;
 #if _GLIBCXX_ASSERTIONS
 	// no dummy sequence can ever be at the top!
 	_GLIBCXX_PARALLEL_ASSERT(_M_losers[0]._M_source != -1);