Minor clean-ups (const, for-range, etc).

git-svn-id: svn+ssh://scm.gforge.inria.fr/svnroot/gudhi/trunk@798 636b058d-ea47-450e-bf9e-a15bfbe3eedb

Former-commit-id: de10cc12d852eab34e258bbfb98ff0aef864e453

1 files changed, 6 insertions, 8 deletions

diff --git a/src/Persistent_cohomology/include/gudhi/Persistent_cohomology/Persistent_cohomology_column.h b/src/Persistent_cohomology/include/gudhi/Persistent_cohomology/Persistent_cohomology_column.h
index fcec819a..5ffd1776 100644
--- a/src/Persistent_cohomology/include/gudhi/Persistent_cohomology/Persistent_cohomology_column.h
+++ b/src/Persistent_cohomology/include/gudhi/Persistent_cohomology/Persistent_cohomology_column.h
@@ -93,27 +93,25 @@ class Persistent_cohomology_column : public boost::intrusive::set_base_hook<
       boost::intrusive::base_hook<base_hook_cam_v> > Col_type;
 
   /** \brief Creates an empty column.*/
-  explicit Persistent_cohomology_column(SimplexKey key) {
-    class_key_ = key;
-    col_ = Col_type();
-  }
+  explicit Persistent_cohomology_column(SimplexKey key)
+      : col_(),
+        class_key_(key) {}
  public:
   /** Copy constructor.*/
   Persistent_cohomology_column(Persistent_cohomology_column const &other)
       : col_(),
         class_key_(other.class_key_) {
-    if (!other.col_.empty())
-      std::cerr << "Copying a non-empty column.\n";
+    assert(other.col_.empty());
   }
 
   /** \brief Returns true iff the column is null.*/
-  bool is_null() {
+  bool is_null() const {
     return col_.empty();
   }
   /** \brief Returns the key of the representative simplex of
    * the set of simplices having this column as annotation vector
    * in the compressed annotation matrix.*/
-  SimplexKey class_key() {
+  SimplexKey class_key() const {
     return class_key_;
   }