Create a header file for NgramCounts class.

The reason is that we want to add the unit test.

1 files changed, 2 insertions, 7 deletions

diff --git a/mert/BleuScorer.h b/mert/BleuScorer.h
index f3513e135..c35d4ad1d 100644
--- a/mert/BleuScorer.h
+++ b/mert/BleuScorer.h
@@ -14,6 +14,8 @@ using namespace std;
 
 const int kBleuNgramOrder = 4;
 
+class NgramCounts;
+
 /**
  * Bleu scoring
  */
@@ -36,13 +38,6 @@ private:
   };
 
   /**
-   * A NgramCounts is a key-value store.
-   * Clients don't have to worry about the actual implementation
-   * since this type is used in internal only.
-   */
-  class NgramCounts;
-
-  /**
    * Count the ngrams of each type, up to the given length in the input line.
    */
   size_t countNgrams(const string& line, NgramCounts& counts, unsigned int n);