fix for potentially empty names

[simgrid.git] / src / smpi / include / smpi_datatype.hpp

diff --git a/src/smpi/include/smpi_datatype.hpp b/src/smpi/include/smpi_datatype.hpp
index 06a106b..19ad3ab 100644 (file)
--- a/src/smpi/include/smpi_datatype.hpp
+++ b/src/smpi/include/smpi_datatype.hpp
@@ -127,7 +127,7 @@ public:
   Datatype(const Datatype&) = delete;
   Datatype& operator=(const Datatype&) = delete;
   ~Datatype() override;
-  std::string name() const {return name_;}
+  std::string name() const {return name_.empty() ? std::string("MPI_Datatype") : name_;}
   size_t size() const { return size_; }
   MPI_Aint lb() const { return lb_; }
   MPI_Aint ub() const { return ub_; }