prevent endless recursion through rtl_math_erf* for Inf or NaN

Change-Id: If6eb273bc4d76f85da0844caea4bd697c6263013

1 files changed, 8 insertions, 0 deletions

diff --git a/sal/rtl/math.cxx b/sal/rtl/math.cxx
index db9b06a2ac36..95990287bec0 100644
--- a/sal/rtl/math.cxx
+++ b/sal/rtl/math.cxx
@@ -1141,6 +1141,10 @@ double SAL_CALL rtl_math_erf( double x ) SAL_THROW_EXTERN_C()
     if( x == 0.0 )
         return 0.0;
 
+    // Otherwise we may end up in endless recursion through rtl_math_erfc().
+    if (!::rtl::math::isFinite(x))
+        return x;
+
     bool bNegative = false;
     if ( x < 0.0 )
     {
@@ -1177,6 +1181,10 @@ double SAL_CALL rtl_math_erfc( double x ) SAL_THROW_EXTERN_C()
     if ( x == 0.0 )
         return 1.0;
 
+    // Otherwise we may end up in endless recursion through rtl_math_erf().
+    if (!::rtl::math::isFinite(x))
+        return x;
+
     bool bNegative = false;
     if ( x < 0.0 )
     {