Fixed an overflow

maca_common/src/mcd.c

@@ -11,6 +11,10 @@
 void mcd_remove_wf_column(mcd *m, int wf_code)
 {
   int col = m->wf2col[wf_code];
+
+  if(col < 0 || col >= m->nb_col)
+    return;
+
   m->wf2col[wf_code] = -1;
   
   m->representation[col] = MCD_REPRESENTATION_NULL;
@@ -19,7 +23,6 @@ void mcd_remove_wf_column(mcd *m, int wf_code)
   m->filename[col] = NULL;
   m->dico_array[col] = NULL;
   m->word_emb_array[col] = NULL;
-  
 }
 
 mcd *mcd_new(int nb_col)