From 699ff83712b5796ac50ed332d9dad55d38450e81 Mon Sep 17 00:00:00 2001
From: Joseph Myers <joseph@codesourcery.com>
Date: Wed, 4 Dec 2013 14:39:37 +0000
Subject: Fix Bessel function error handling (bug 6807, bug 15901).

---
 math/w_jnf.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

(limited to 'math/w_jnf.c')

diff --git a/math/w_jnf.c b/math/w_jnf.c
index c9114e7b09..cb1aab8e73 100644
--- a/math/w_jnf.c
+++ b/math/w_jnf.c
@@ -49,8 +49,11 @@ ynf (int n, float x)
 	  return __kernel_standard_f (n, x, 113);
 	}
       else if (x == 0.0)
-	/* d = -one/(x-x) */
-	return __kernel_standard_f (n, x, 112);
+	{
+	  /* d = -one/(x-x) */
+	  feraiseexcept (FE_DIVBYZERO);
+	  return __kernel_standard_f (n, x, 112);
+	}
       else if (_LIB_VERSION != _POSIX_)
 	/* yn(n,x>X_TLOSS) */
 	return __kernel_standard_f (n, x, 139);
-- 
cgit 1.4.1