From 9f34384f610e512488df4bb0f08e962ad95d6d13 Mon Sep 17 00:00:00 2001
From: graehl <graehl@ec762483-ff6d-05da-a07a-a48fb63a330f>
Date: Tue, 27 Jul 2010 04:59:37 +0000
Subject: fsa feature templated Accum interface, phrase interface allows
 exceeding markov order e.g. unigram state, 3gram lm.  use Accum,set_value
 rather than clear,add_value.  warning: 3gram fsa lm disagrees with bottom-up
 in 4th decimal place

git-svn-id: https://ws10smt.googlecode.com/svn/trunk@431 ec762483-ff6d-05da-a07a-a48fb63a330f
---
 decoder/sparse_vector.h | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

(limited to 'decoder/sparse_vector.h')

diff --git a/decoder/sparse_vector.h b/decoder/sparse_vector.h
index 8fc0f520..207489c5 100644
--- a/decoder/sparse_vector.h
+++ b/decoder/sparse_vector.h
@@ -60,6 +60,11 @@ class SparseVector {
     SPARSE_VECTOR_MAP_RESERVED(values_,-1,-2);
   }
 public:
+  T const& get_singleton() const {
+    assert(values_.size()==1);
+    return values_.begin()->second;
+  }
+
   typedef SparseVector<T> Self;
   typedef SPARSE_VECTOR_MAP<int, T> MapType;
   typedef typename MapType::const_iterator const_iterator;
@@ -113,7 +118,7 @@ public:
     return values_[index];
   }
 
-  void set_value(int index, const T &value) {
+  inline void set_value(int index, const T &value) {
     values_[index] = value;
   }
 
@@ -236,6 +241,15 @@ public:
     values_.erase(found);*/
   }
 
+  template <class T2>
+  void set_from(SparseVector<T2> const& other) {
+    for (typename MapType::const_iterator
+           it = other.values_.begin(); it != other.values_.end(); ++it)
+    {
+      values_[it->first]=it->second;
+    }
+  }
+
     SparseVector<T> &operator+=(const SparseVector<T> &other) {
         for (typename MapType::const_iterator
                 it = other.values_.begin(); it != other.values_.end(); ++it)
-- 
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