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, 89 insertions, 0 deletions

diff --git a/usr/src/lib/libm/common/complex/complex_wrapper.h b/usr/src/lib/libm/common/complex/complex_wrapper.h
new file mode 100644
index 0000000000..b86a9846eb
--- /dev/null
+++ b/usr/src/lib/libm/common/complex/complex_wrapper.h
@@ -0,0 +1,89 @@
+/*
+ * 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.
+ */
+
+#ifndef _COMPLEX_WRAPPER_H
+#define	_COMPLEX_WRAPPER_H
+
+#pragma ident	"@(#)complex_wrapper.h	1.7	06/01/31 SMI"
+
+#if defined(__GNUC__)
+#define dcomplex double _Complex
+#define fcomplex float _Complex
+#define ldcomplex long double _Complex
+#define D_RE(x) __real__ x
+#define D_IM(x) __imag__ x
+#define F_RE(x) __real__ x
+#define F_IM(x) __imag__ x
+#define LD_RE(x) __real__ x
+#define LD_IM(x) __imag__ x
+
+#include <complex.h>
+#else
+
+#define	dcomplex	double complex
+#define	fcomplex	float complex
+#define	ldcomplex	long double complex
+#define	_X_RE(__t, __z)	((__t *) &__z)[0]
+#define	_X_IM(__t, __z)	((__t *) &__z)[1]
+#define	D_RE(__z)	_X_RE(double, __z)
+#define	D_IM(__z)	_X_IM(double, __z)
+#define	F_RE(__z)	_X_RE(float, __z)
+#define	F_IM(__z)	_X_IM(float, __z)
+#define	LD_RE(__z)	_X_RE(long double, __z)
+#define	LD_IM(__z)	_X_IM(long double, __z)
+
+#include <complex.h>
+#endif
+
+#if defined(__sparc)
+#define	HIWORD	0
+#define	LOWORD	1
+#define	HI_XWORD(x)	((unsigned *) &x)[0]
+#define	XFSCALE(x, n)	((unsigned *) &x)[0] += n << 16	/* signbitl(x) == 0 */
+#define	CHOPPED(x)	((long double) ((double) (x)))
+#elif defined(__x86)
+#define	HIWORD	1
+#define	LOWORD	0
+#define	HI_XWORD(x)	((((int *) &x)[2] << 16) | \
+			(0xffff & ((unsigned *) &x)[1] >> 15))
+#define	XFSCALE(x, n)	((unsigned short *) &x)[4] += n	/* signbitl(x) == 0 */
+#define	CHOPPED(x)	((long double) ((float) (x)))
+#else
+#error Unknown architecture
+#endif
+#define	HI_WORD(x)	((int *) &x)[HIWORD]	/* for double */
+#define	LO_WORD(x)	((int *) &x)[LOWORD]	/* for double */
+#define	THE_WORD(x)	((int *) &x)[0]		/* for float */
+
+/*
+ * iy:ly must have the sign bit already cleared
+ */
+#define	ISINF(iy, ly)	(((iy - 0x7ff00000) | ly) == 0)
+
+#endif	/* _COMPLEX_WRAPPER_H */