From b35a7f3a96ff8ae42e15922dd6949bf9f5d15501 Mon Sep 17 00:00:00 2001
From: Kenneth Heafield <github@kheafield.com>
Date: Tue, 22 Jan 2013 21:37:49 +0000
Subject: KenLM 58da338b

---
 klm/util/stream/sort.hh | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

(limited to 'klm/util/stream/sort.hh')

diff --git a/klm/util/stream/sort.hh b/klm/util/stream/sort.hh
index a86f160f..16aa6a03 100644
--- a/klm/util/stream/sort.hh
+++ b/klm/util/stream/sort.hh
@@ -365,10 +365,14 @@ template <class Compare> class BlockSorter {
         // Record the size of each block in a separate file.    
         offsets_->Append(link->ValidSize());
         void *end = static_cast<uint8_t*>(link->Get()) + link->ValidSize();
-        std::sort(
-            SizedIt(link->Get(), entry_size),
-            SizedIt(end, entry_size),
-            compare_);
+#if defined(_WIN32) || defined(_WIN64)
+        std::stable_sort
+#else
+        std::sort
+#endif
+          (SizedIt(link->Get(), entry_size),
+           SizedIt(end, entry_size),
+           compare_);
       }
       offsets_->FinishedAppending();
     }
-- 
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