Silence -fsanitize=float-divide-by-zero in some parts of sc

...that rely on floating-point division by zero to produce infinity

Change-Id: I081c88a9631b1d8aab85c600c6da04f158089644

solenv/sanitizers/ubsan-suppressions

@@ -0,0 +1,18 @@
+#
+# This file is part of the LibreOffice project.
+#
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+#
+
+# Various places in sc rely on floating-point division by zero to produce
+# infinity (as triggered by CppunitTest_sc_functions_test); silence those UBSan
+# reports by adding
+# suppressions=/path-to-this/solenv/sanitizers/ubsan-suppressions to the
+# UBSAN_OPTIONS environment variable (and making sure to compile with
+# -fsanitize-recover=float-divide-by-zero):
+
+float-divide-by-zero:sc/source/core/tool/interpr2.cxx
+float-divide-by-zero:scaddins/source/analysis/analysis.cxx
+float-divide-by-zero:scaddins/source/analysis/financial.cxx