From 0ecb606cb6cf65de1d9fc8a919bceb4be476c602 Mon Sep 17 00:00:00 2001
From: Jakub Jelinek <jakub@redhat.com>
Date: Thu, 12 Jul 2007 18:26:36 +0000
Subject: 2.5-18.1

---
 sysdeps/ieee754/ldbl-128ibm/s_isnanl.c | 43 ++++++++++++++++++++++++++++++++++
 1 file changed, 43 insertions(+)
 create mode 100644 sysdeps/ieee754/ldbl-128ibm/s_isnanl.c

(limited to 'sysdeps/ieee754/ldbl-128ibm/s_isnanl.c')

diff --git a/sysdeps/ieee754/ldbl-128ibm/s_isnanl.c b/sysdeps/ieee754/ldbl-128ibm/s_isnanl.c
new file mode 100644
index 0000000..ae5ba8e
--- /dev/null
+++ b/sysdeps/ieee754/ldbl-128ibm/s_isnanl.c
@@ -0,0 +1,43 @@
+/* s_isnanl.c -- long double version of s_isnan.c.
+ * Conversion to long double by Jakub Jelinek, jj@ultra.linux.cz.
+ */
+
+/*
+ * ====================================================
+ * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
+ *
+ * Developed at SunPro, a Sun Microsystems, Inc. business.
+ * Permission to use, copy, modify, and distribute this
+ * software is freely granted, provided that this notice
+ * is preserved.
+ * ====================================================
+ */
+
+#if defined(LIBM_SCCS) && !defined(lint)
+static char rcsid[] = "$NetBSD: $";
+#endif
+
+/*
+ * isnanl(x) returns 1 is x is nan, else 0;
+ * no branching!
+ */
+
+#include "math.h"
+#include "math_private.h"
+#include <math_ldbl_opt.h>
+
+int
+___isnanl (long double x)
+{
+	int64_t hx,lx;
+	GET_LDOUBLE_WORDS64(hx,lx,x);
+	hx &= 0x7fffffffffffffffLL;
+	hx = 0x7ff0000000000000LL - hx;
+	return (int)((u_int64_t)hx>>63);
+}
+hidden_ver (___isnanl, __isnanl)
+#ifndef IS_IN_libm
+weak_alias (___isnanl, ____isnanl)
+long_double_symbol (libc, ___isnanl, isnanl);
+long_double_symbol (libc, ____isnanl, __isnanl);
+#endif
-- 
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