Fixed bug that bailed on empty alignment files. (weird exception case)

diff --git a/htswanalysis/src/complexity_count.cpp b/htswanalysis/src/complexity_count.cpp
index 965272d008250b43c4a00ccb10ed5f3c4999cd3a..28e42953c6a8490e3cfdc3166002953fe7805830 100644 (file)
--- a/htswanalysis/src/complexity_count.cpp
+++ b/htswanalysis/src/complexity_count.cpp
@@ -117,7 +117,8 @@ int main(int argc, char** argv) {
   char label1[128]; strcpy(label1,argv[1]);
   Hits align1; read_align_file(argv[2], align1); 
 
-  int complexity = count_complexity(align1);
+  int complexity;
+  if(align1.size() == 0) complexity = 0; else complexity = count_complexity(align1);
 
   cout << label1 << "\t" << complexity << "\t" << align1.size()/1000000 << "M\t" << (double)complexity/(double)align1.size() << endl;
 }