Proper exception in write_output_diagram

1 files changed, 1 insertions, 0 deletions

diff --git a/src/Persistent_cohomology/include/gudhi/Persistent_cohomology.h b/src/Persistent_cohomology/include/gudhi/Persistent_cohomology.h
index ca4bc10d..5e41edb4 100644
--- a/src/Persistent_cohomology/include/gudhi/Persistent_cohomology.h
+++ b/src/Persistent_cohomology/include/gudhi/Persistent_cohomology.h
@@ -571,6 +571,7 @@ class Persistent_cohomology {
 
   void write_output_diagram(std::string diagram_name) {
     std::ofstream diagram_out(diagram_name.c_str());
+    diagram_out.exceptions(diagram_out.failbit);
     cmp_intervals_by_length cmp(cpx_);
     std::sort(std::begin(persistent_pairs_), std::end(persistent_pairs_), cmp);
     bool has_infinity = std::numeric_limits<Filtration_value>::has_infinity;