From a1e54756a15b4f8924bf39298ed40c93ac18262d Mon Sep 17 00:00:00 2001
From: Fredrik Johansson <fredrik.johansson@gmail.com>
Date: Sun, 24 Jan 2016 15:13:18 +0100
Subject: [PATCH] add an extra overflow check

---
 arb/bernoulli_poly_ui.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arb/bernoulli_poly_ui.c b/arb/bernoulli_poly_ui.c
index 7116525e..8f3115ac 100644
--- a/arb/bernoulli_poly_ui.c
+++ b/arb/bernoulli_poly_ui.c
@@ -47,7 +47,7 @@ arb_bernoulli_poly_ui(arb_t res, ulong n, const arb_t x, slong prec)
     }
 
     /* small integer x */
-    if (arb_is_int(x) && arf_cmpabs_ui(arb_midref(x), n) < 0)
+    if (arb_is_int(x) && arf_cmpabs_ui(arb_midref(x), n) < 0 && n < WORD_MAX)
     {
         if (arf_sgn(arb_midref(x)) >= 0)
         {