From: Wolfgang Bangerth <bangerth@math.tamu.edu>
Date: Thu, 28 May 2015 20:26:21 +0000 (-0500)
Subject: Fix a test where we may inadvertently divide by zero.
X-Git-Tag: v8.3.0-rc1~141^2
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=refs%2Fpull%2F972%2Fhead;p=dealii.git

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 996f6894e7..0e5c6af011 100644
--- 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