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-rw-r--r--src/Simplex_tree/concept/VertexHandle.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/Simplex_tree/concept/VertexHandle.h b/src/Simplex_tree/concept/VertexHandle.h
index 491f0f56..3efbba61 100644
--- a/src/Simplex_tree/concept/VertexHandle.h
+++ b/src/Simplex_tree/concept/VertexHandle.h
@@ -22,5 +22,6 @@
/** \brief Handle type for the vertices of a cell complex.
*
- * Must be int.*/
+ * Must be a signed integer type. <code>operator&lt;</code> defines a total order on it.
+ */
struct VertexHandle {};