From 3a9fee7f9ec8c1f6bbf8f34e816891223086cb7a Mon Sep 17 00:00:00 2001
From: Santiago Ospina <santiago.ospina@iup.uni-heidelberg.de>
Date: Fri, 5 Oct 2018 15:22:48 +0200
Subject: [PATCH] Adds meaningful output for invalid state exception of grid
 functions Signed-off-by: Santiago Ospina
 <santiago.ospina@iup.uni-heidelberg.de>

---
 dune/dorie/interface/transport_simulation.cc | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/dune/dorie/interface/transport_simulation.cc b/dune/dorie/interface/transport_simulation.cc
index 16fc281c..552a590f 100644
--- a/dune/dorie/interface/transport_simulation.cc
+++ b/dune/dorie/interface/transport_simulation.cc
@@ -80,9 +80,11 @@ template<typename Traits>
 void TransportSimulation<Traits>::operator_setup ()
 {
   if (!gf_water_flux)
-    DUNE_THROW(Dune::Exception," ");
+    DUNE_THROW(Dune::InvalidStateException,
+        "Pointer to gf_water_flux is invalid!");
   if (!gf_saturation)
-    DUNE_THROW(Dune::Exception," ");
+      DUNE_THROW(Dune::InvalidStateException,
+        "Pointer to gf_saturation is invalid!");
 
   // --- Local Operators ---
   double diff_coeff = inifile.get<double>("parameters.molecularDiffusion");
-- 
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