Check factor is not null before outputting

1 files changed, 5 insertions, 0 deletions

diff --git a/moses-chart-cmd/src/IOWrapper.cpp b/moses-chart-cmd/src/IOWrapper.cpp
index f868479bc..cd8b1b74b 100644
--- a/moses-chart-cmd/src/IOWrapper.cpp
+++ b/moses-chart-cmd/src/IOWrapper.cpp
@@ -159,9 +159,12 @@ void OutputSurface(std::ostream &out, const Phrase &phrase, const std::vector<Fa
     for (size_t pos = 0 ; pos < size ; pos++) {
       const Factor *factor = phrase.GetFactor(pos, outputFactorOrder[0]);
       out << *factor;
+      CHECK(factor);
 
       for (size_t i = 1 ; i < outputFactorOrder.size() ; i++) {
         const Factor *factor = phrase.GetFactor(pos, outputFactorOrder[i]);
+	CHECK(factor);
+
         out << "|" << *factor;
       }
       out << " ";
@@ -203,6 +206,8 @@ void IOWrapper::OutputBestHypo(const std::vector<const Factor*>&  mbrBestHypo, l
 {
   for (size_t i = 0 ; i < mbrBestHypo.size() ; i++) {
     const Factor *factor = mbrBestHypo[i];
+    CHECK(factor);
+
     cout << *factor << " ";
   }
 }