From 354691b7b55d014b9a4d3a94e2f8f934870b6bff Mon Sep 17 00:00:00 2001
From: Marek Polacek <polacek@redhat.com>
Date: Wed, 25 Jul 2012 12:59:36 +0200
Subject: Set up errno properly for yn.

---
 sysdeps/ieee754/flt-32/e_jnf.c | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'sysdeps/ieee754/flt-32')

diff --git a/sysdeps/ieee754/flt-32/e_jnf.c b/sysdeps/ieee754/flt-32/e_jnf.c
index bed9cee7ab..ad26d7e8a6 100644
--- a/sysdeps/ieee754/flt-32/e_jnf.c
+++ b/sysdeps/ieee754/flt-32/e_jnf.c
@@ -13,6 +13,7 @@
  * ====================================================
  */
 
+#include <errno.h>
 #include <math.h>
 #include <math_private.h>
 
@@ -199,6 +200,9 @@ __ieee754_ynf(int n, float x)
 	    GET_FLOAT_WORD(ib,b);
 	    a = temp;
 	}
+	/* If B is +-Inf, set up errno accordingly.  */
+	if (! __finitef (b))
+	  __set_errno (ERANGE);
 	if(sign>0) return b; else return -b;
 }
 strong_alias (__ieee754_ynf, __ynf_finite)
-- 
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