sal/rtl/math.cxx | 3 +++
1 file changed, 3 insertions(+)
New commits:
commit 6a4504bba84dcbaeb71869ec5c9ed6dfdc090619
Author: Stephan Bergmann <[email protected]>
Date: Fri Mar 2 08:59:30 2018 +0100
Disable -fsanitize=float-divide-by-zero in rtl_math_atanh
...which relies on division by zero producing inf, for atanh(1) = inf. (As
tested by CppunitTest_sal_rtl.)
Change-Id: I0e5de8850ab4cbd05f83027c1eb548e2e0c9a9b2
Reviewed-on: https://gerrit.libreoffice.org/50613
Tested-by: Jenkins <[email protected]>
Reviewed-by: Stephan Bergmann <[email protected]>
diff --git a/sal/rtl/math.cxx b/sal/rtl/math.cxx
index 8435715a1afc..eef48b57e74e 100644
--- a/sal/rtl/math.cxx
+++ b/sal/rtl/math.cxx
@@ -1277,6 +1277,9 @@ double SAL_CALL rtl_math_log1p(double fValue)
SAL_THROW_EXTERN_C()
}
double SAL_CALL rtl_math_atanh(double fValue) SAL_THROW_EXTERN_C()
+#if defined __clang__
+ __attribute__((no_sanitize("float-divide-by-zero"))) // atahn(1) -> inf
+#endif
{
return 0.5 * rtl_math_log1p(2.0 * fValue / (1.0-fValue));
}
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