From 4ea806a159d92e86fd6b3670ca59da3ec69e8713 Mon Sep 17 00:00:00 2001
From: Hieu Hoang <hieuhoang@gmail.com>
Date: Tue, 13 Oct 2015 13:17:34 +0100
Subject: new FF state API for HReorderingForwardState

---
 moses/FF/LexicalReordering/LexicalReorderingState.cpp | 16 +++++++++++++---
 1 file changed, 13 insertions(+), 3 deletions(-)

(limited to 'moses/FF')

diff --git a/moses/FF/LexicalReordering/LexicalReorderingState.cpp b/moses/FF/LexicalReordering/LexicalReorderingState.cpp
index 6f368b9a9..6e6ecaf46 100644
--- a/moses/FF/LexicalReordering/LexicalReorderingState.cpp
+++ b/moses/FF/LexicalReordering/LexicalReorderingState.cpp
@@ -512,12 +512,22 @@ Compare(const FFState& o) const
 
 size_t HReorderingForwardState::hash() const
 {
-  UTIL_THROW2("TODO:Haven't figure this out yet");
+  size_t ret;
+  ret = hash_value(m_prevRange);
+  return ret;
 }
 
-bool HReorderingForwardState::operator==(const FFState& other) const
+bool HReorderingForwardState::operator==(const FFState& o) const
 {
-  UTIL_THROW2("TODO:Haven't figure this out yet");
+  if (&o == this) return true;
+
+  HReorderingForwardState const& other
+  = static_cast<HReorderingForwardState const&>(o);
+
+  int compareScores = ((m_prevRange == other.m_prevRange)
+		  ? ComparePrevScores(other.m_prevOption)
+		  : (m_prevRange < other.m_prevRange) ? -1 : 1);
+  return compareScores == 0;
 }
 
 // For compatibility with the phrase-based reordering model, scoring is one
-- 
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