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Diffstat (limited to 'usr/src/libm/src/Q/copysignl.c')
-rw-r--r--usr/src/libm/src/Q/copysignl.c42
1 files changed, 42 insertions, 0 deletions
diff --git a/usr/src/libm/src/Q/copysignl.c b/usr/src/libm/src/Q/copysignl.c
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+++ b/usr/src/libm/src/Q/copysignl.c
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+/*
+ * 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 2006 Sun Microsystems, Inc. All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#pragma ident "@(#)copysignl.c 1.3 06/01/31 SMI"
+
+#if defined(ELFOBJ)
+#pragma weak copysignl = __copysignl
+#endif
+
+#include "libm.h"
+
+long double
+copysignl(long double x, long double y) {
+ int *px = (int *) &x;
+ int *py = (int *) &y;
+
+ px[HIXWORD] = (px[HIXWORD] & ~XSGNMSK) | (py[HIXWORD] & XSGNMSK);
+ return (x);
+}