693 Opensource replacement of sunwlibm

Reviewed by: Igor Kozhukhov ikozhukhov@gmail.com
Reviewed by: Keith M Wesolowski <keith.wesolowski@joyent.com>
Reviewed by: Richard Lowe <richlowe@richlowe.net>
Approved by: Dan McDonald <danmcd@omniti.com>

1 files changed, 48 insertions, 0 deletions

diff --git a/usr/src/lib/libm/common/complex/csinf.c b/usr/src/lib/libm/common/complex/csinf.c
new file mode 100644
index 0000000000..6c88d0e1d1
--- /dev/null
+++ b/usr/src/lib/libm/common/complex/csinf.c
@@ -0,0 +1,48 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License (the "License").
+ * You may not use this file except in compliance with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+
+/*
+ * Copyright 2011 Nexenta Systems, Inc.  All rights reserved.
+ */
+/*
+ * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#pragma weak csinf = __csinf
+
+#include "libm.h"
+#include "complex_wrapper.h"
+
+fcomplex
+csinf(fcomplex z) {
+	float x, y;
+	fcomplex ans, ct;
+
+	x = F_RE(z);
+	y = F_IM(z);
+	F_RE(z) = y;
+	F_IM(z) = -x;
+	ct = csinhf(z);
+	F_RE(ans) = -F_IM(ct);
+	F_IM(ans) = F_RE(ct);
+	return (ans);
+}