From 783c57b2d3312738ddcf992ac55ff750afe7cb47 Mon Sep 17 00:00:00 2001
From: Kenneth Heafield <github@kheafield.com>
Date: Mon, 27 Jan 2014 17:42:19 -0800
Subject: KenLM 5cc905bc2d214efa7de2db56a9a672b749a95591

---
 klm/lm/trie_sort.cc | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'klm/lm/trie_sort.cc')

diff --git a/klm/lm/trie_sort.cc b/klm/lm/trie_sort.cc
index dc542bb3..126d43ab 100644
--- a/klm/lm/trie_sort.cc
+++ b/klm/lm/trie_sort.cc
@@ -50,6 +50,10 @@ class PartialViewProxy {
     const void *Data() const { return inner_.Data(); }
     void *Data() { return inner_.Data(); }
 
+    friend void swap(PartialViewProxy first, PartialViewProxy second) {
+      std::swap_ranges(reinterpret_cast<char*>(first.Data()), reinterpret_cast<char*>(first.Data()) + first.attention_size_, reinterpret_cast<char*>(second.Data()));
+    }
+
   private:
     friend class util::ProxyIterator<PartialViewProxy>;
 
-- 
cgit v1.2.3