[MeL] Disable FPE for reading vtu files

Reading the VTU files can trigger floating point exceptions. Because
we are not debugging VTK (or other libraries) at this point, the
floating point exceptions are temporarily disabled and are restored
at the end of the scope.

MeshLib/IO/VtkIO/VtuInterface.cpp

@@ -25,6 +25,7 @@
 
 #include <boost/algorithm/string/erase.hpp>
 
+#include "BaseLib/DisableFPE.h"
 #include "BaseLib/Logging.h"
 
 #ifdef USE_PETSC
@@ -62,7 +63,14 @@ MeshLib::Mesh* VtuInterface::readVTUFile(std::string const& file_name)
     vtkSmartPointer<vtkXMLUnstructuredGridReader> reader =
         vtkSmartPointer<vtkXMLUnstructuredGridReader>::New();
     reader->SetFileName(file_name.c_str());
-    reader->Update();
+    {
+        // Reading the VTU files can trigger floating point exceptions. Because
+        // we are not debugging VTK (or other libraries) at this point, the
+        // floating point exceptions are temporarily disabled and are restored
+        // at the end of the scope.
+        [[maybe_unused]] DisableFPE disable_fpe;
+        reader->Update();
+    }
 
     vtkUnstructuredGrid* vtkGrid = reader->GetOutput();
     if (vtkGrid->GetNumberOfPoints() == 0)