From: Matthias Maier <maier@tamu.edu>
Date: Sat, 24 Jun 2023 23:56:34 +0000 (-0500)
Subject: Test: lac/linear_operator_10: disable floating point exceptions
X-Git-Tag: v9.5.0-rc1~28^2
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=refs%2Fpull%2F15470%2Fhead;p=dealii.git

Test: lac/linear_operator_10: disable floating point exceptions
---

diff --git a/tests/lac/linear_operator_10.cc b/tests/lac/linear_operator_10.cc
index a489fd7f14..79263104b7 100644
--- a/tests/lac/linear_operator_10.cc
+++ b/tests/lac/linear_operator_10.cc
@@ -50,6 +50,16 @@ test_preconditioner(const MATRIX &         A,
                     const VECTOR &         b,
                     const ADDITIONAL_DATA &data = ADDITIONAL_DATA())
 {
+  // This test might trigger spurious floating point exceptions in Trilinos
+  // despite functioning properly. Simply disable floating point exceptions
+  // again (after they had been enabled int tests.h).
+#if defined(DEBUG) && defined(DEAL_II_HAVE_FP_EXCEPTIONS)
+  {
+    const int current_fe_except = fegetexcept();
+    fedisableexcept(current_fe_except);
+  }
+#endif
+
   const auto lo_A = linear_operator<VECTOR>(A);
   // Note: The above should be equivalent to the following:
   //