Make errors more descriptive

diff --git a/include/deal.II/lac/exceptions.h b/include/deal.II/lac/exceptions.h
index cff07a0e124b2287c74723b83083bc26a23f3c0c..ee51a42b381dd81ab10a0fda9cd180b18f802de7 100644 (file)
--- a/include/deal.II/lac/exceptions.h
+++ b/include/deal.II/lac/exceptions.h
@@ -30,7 +30,8 @@ namespace LACExceptions
   /**
    * This function only works for quadratic matrices.
    */
-  DeclException0 (ExcNotQuadratic);
+  DeclExceptionMsg (ExcNotQuadratic,
+                    "This function only works for quadratic objects!");
 
   /**
    * The operation cannot be finished since the matrix is singular.