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_j1.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

(limited to 'math/w_j1.c')

diff --git a/math/w_j1.c b/math/w_j1.c
index 743c940..a9fb7ae 100644
--- a/math/w_j1.c
+++ b/math/w_j1.c
@@ -51,8 +51,11 @@ y1 (double x)
 	  return __kernel_standard (x, x, 11);
 	}
       else if (x == 0.0)
-	/* d = -one/(x-x) */
-	return __kernel_standard (x, x, 10);
+	{
+	  /* d = -one/(x-x) */
+	  feraiseexcept (FE_DIVBYZERO);
+	  return __kernel_standard (x, x, 10);
+	}
       else if (_LIB_VERSION != _POSIX_)
 	/* y1(x>X_TLOSS) */
 	return __kernel_standard (x, x, 37);
-- 
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