Fix a test where we may inadvertently divide by zero.

The test is also just overly convoluted.

diff --git a/include/deal.II/lac/solver_gmres.h b/include/deal.II/lac/solver_gmres.h
index 996f6894e7c76effaa34c9f0fbaa291a9681fee3..0e5c6af01189e6f82f5f5b935e4d328adbd67574 100644 (file)
--- a/include/deal.II/lac/solver_gmres.h
+++ b/include/deal.II/lac/solver_gmres.h
@@ -754,7 +754,7 @@ SolverGMRES<VECTOR>::solve (const MATRIX         &A,
 
           //s=0 is a lucky breakdown, the solver will reach convergence,
           //but we must not divide by zero here.
-          if (numbers::is_finite(1./s))
+          if (s != 0)
             vv *= 1./s;
 
           // for eigenvalues, get the resulting coefficients from the