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-rw-r--r--src/Alpha_complex/include/gudhi/Alpha_complex.h12
1 files changed, 11 insertions, 1 deletions
diff --git a/src/Alpha_complex/include/gudhi/Alpha_complex.h b/src/Alpha_complex/include/gudhi/Alpha_complex.h
index e03bb161..028ec9bb 100644
--- a/src/Alpha_complex/include/gudhi/Alpha_complex.h
+++ b/src/Alpha_complex/include/gudhi/Alpha_complex.h
@@ -20,6 +20,7 @@
#include <stdlib.h>
#include <math.h> // isnan, fmax
#include <memory> // for std::unique_ptr
+#include <cstddef> // for std::size_t
#include <CGAL/Delaunay_triangulation.h>
#include <CGAL/Regular_triangulation.h> // aka. Weighted Delaunay triangulation
@@ -213,6 +214,15 @@ class Alpha_complex {
Alpha_complex (Alpha_complex&& other) = delete;
Alpha_complex& operator= (Alpha_complex&& other) = delete;
+ /** \brief Returns the number of finite vertices in the triangulation.
+ */
+ std::size_t num_vertices() const {
+ if (triangulation_ == nullptr)
+ return 0;
+ else
+ return triangulation_->number_of_vertices();
+ }
+
/** \brief get_point returns the point corresponding to the vertex given as parameter.
*
* @param[in] vertex Vertex handle of the point to retrieve.
@@ -373,7 +383,7 @@ class Alpha_complex {
// --------------------------------------------------------------------------------------------
// Simplex_tree construction from loop on triangulation finite full cells list
- if (triangulation_->number_of_vertices() > 0) {
+ if (num_vertices() > 0) {
for (auto cit = triangulation_->finite_full_cells_begin();
cit != triangulation_->finite_full_cells_end();
++cit) {