From 0e05d9826e6d32a27392ed9d6fe613ef6cf957a0 Mon Sep 17 00:00:00 2001
From: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
Date: Thu, 25 Sep 2008 17:43:58 +0000
Subject: - remove files that are not either LGPL or Public Domain. - pull
 replacement funcs for fpmacros.c from glibc
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  This removes the powerpc/classic implementation which did not state any
  license but read:
  Copyright © 1991 Apple Computer, Inc.  All rights reserved.
  and thus was dubious (and not needed).
---
 libm/s_isinff.c | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)
 create mode 100644 libm/s_isinff.c

(limited to 'libm/s_isinff.c')

diff --git a/libm/s_isinff.c b/libm/s_isinff.c
new file mode 100644
index 000000000..33e274947
--- /dev/null
+++ b/libm/s_isinff.c
@@ -0,0 +1,30 @@
+/*
+ * Written by J.T. Conklin <jtc@netbsd.org>.
+ * Public domain.
+ */
+
+#if defined(LIBM_SCCS) && !defined(lint)
+static char rcsid[] = "$NetBSD: s_isinff.c,v 1.3 1995/05/11 23:20:21 jtc Exp $";
+#endif
+
+/*
+ * isinff(x) returns 1 if x is inf, -1 if x is -inf, else 0;
+ * no branching!
+ */
+
+#include "math.h"
+#include "math_private.h"
+
+libm_hidden_proto(__isinff)
+int
+__isinff (float x)
+{
+	int32_t ix,t;
+	GET_FLOAT_WORD(ix,x);
+	t = ix & 0x7fffffff;
+	t ^= 0x7f800000;
+	t |= -t;
+	return ~(t >> 31) & (ix >> 30);
+}
+libm_hidden_def (__isinff)
+weak_alias (__isinff, isinff)
-- 
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