misc

git-svn-id: https://ws10smt.googlecode.com/svn/trunk@185 ec762483-ff6d-05da-a07a-a48fb63a330f

1 files changed, 5 insertions, 0 deletions

diff --git a/decoder/sparse_vector.h b/decoder/sparse_vector.h
index 26f5d791..7794fd5e 100644
--- a/decoder/sparse_vector.h
+++ b/decoder/sparse_vector.h
@@ -18,6 +18,11 @@ public:
   typedef std::map<int, T> MapType;
   typedef typename std::map<int, T>::const_iterator const_iterator;
   SparseVector() {}
+  explicit SparseVector(std::vector<T> const& v) {
+    MapType::iterator p=values_.end();
+    for (unsigned i=0;i<v.size();++i)
+      p=values_.insert(p,MapType::value_type(i,v[i])); //faster
+  }
 
   const T operator[](int index) const {
     typename MapType::const_iterator found = values_.find(index);