From: Denis Davydov <davydden@gmail.com>
Date: Sun, 28 Feb 2016 16:16:04 +0000 (+0100)
Subject: add a message why one should not use GridRefinement functions with complex-valued... 
X-Git-Tag: v8.5.0-rc1~1274^2
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=refs%2Fpull%2F2257%2Fhead;p=dealii.git

add a message why one should not use GridRefinement functions with complex-valued PETSc
---

diff --git a/source/grid/grid_refinement.cc b/source/grid/grid_refinement.cc
index a31f4d159b..e3984971e7 100644
--- a/source/grid/grid_refinement.cc
+++ b/source/grid/grid_refinement.cc
@@ -75,7 +75,8 @@ namespace
       for (unsigned int i=0; i<criteria.size(); ++i)
         m = std::max (m, criteria(i));
 #else
-      Assert(false, ExcNotImplemented())
+      Assert(false, ExcMessage("The GridRefinement functions should only get real-valued vectors of refinement indicators."
+                               " Using these functions with complex-valued PETSc vectors does not make sense."))
 #endif
       return m;
     }
@@ -93,7 +94,8 @@ namespace
       for (unsigned int i=1; i<criteria.size(); ++i)
         m = std::min (m, criteria(i));
 #else
-      Assert(false, ExcNotImplemented());
+      Assert(false, ExcMessage("The GridRefinement functions should only get real-valued vectors of refinement indicators."
+                               " Using these functions with complex-valued PETSc vectors does not make sense."))
 #endif
       return m;
     }