Simplex_key clarifications in FilteredComplex concept.

git-svn-id: svn+ssh://scm.gforge.inria.fr/svnroot/gudhi/trunk@3284 636b058d-ea47-450e-bf9e-a15bfbe3eedb

Former-commit-id: a42ef2c14a64a769c9a8c8ddc37071ba260b17bf

1 files changed, 3 insertions, 3 deletions

diff --git a/src/Persistent_cohomology/concept/FilteredComplex.h b/src/Persistent_cohomology/concept/FilteredComplex.h
index c19698df..d6b662e9 100644
--- a/src/Persistent_cohomology/concept/FilteredComplex.h
+++ b/src/Persistent_cohomology/concept/FilteredComplex.h
@@ -31,7 +31,7 @@ struct FilteredComplex
   typedef unspecified      Simplex_handle;
 /** \brief Key associated to each simplex. 
   *
-  * Must be a signed integer type. */
+  * Must be an integer type. */
   typedef unspecified      Simplex_key;
 /** \brief Type for the value of the filtration function.
   *
@@ -67,8 +67,8 @@ struct FilteredComplex
   Simplex_key              key      ( Simplex_handle sh );
 /** \brief Returns the simplex that has index idx in the filtration.
  *
- * This is never called on null_key(). */
-  Simplex_handle           simplex  ( Simplex_key idx );
+ * This is only called on valid indices. */
+  Simplex_handle           simplex  ( size_t idx );
 /** \brief Assign a key to a simplex. */
   void                     assign_key(Simplex_handle sh, Simplex_key key);