usr/src/lib/libm/common/complex/complex_wrapper.h

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License (the "License").
   6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21
  22 /*
  23  * Copyright 2011 Nexenta Systems, Inc.  All rights reserved.
  24  */
  25 /*
  26  * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
  27  * Use is subject to license terms.
  28  */
  29
  30 #ifndef _COMPLEX_WRAPPER_H
  31 #define _COMPLEX_WRAPPER_H
  32
  33 #pragma ident   "@(#)complex_wrapper.h  1.7     06/01/31 SMI"
  34
  35 #if defined(__GNUC__)
  36 #define dcomplex double _Complex
  37 #define fcomplex float _Complex
  38 #define ldcomplex long double _Complex
  39 #define D_RE(x) __real__ x
  40 #define D_IM(x) __imag__ x
  41 #define F_RE(x) __real__ x
  42 #define F_IM(x) __imag__ x
  43 #define LD_RE(x) __real__ x
  44 #define LD_IM(x) __imag__ x
  45
  46 #include <complex.h>
  47 #else
  48
  49 #define dcomplex        double complex
  50 #define fcomplex        float complex
  51 #define ldcomplex       long double complex
  52 #define _X_RE(__t, __z) ((__t *) &__z)[0]
  53 #define _X_IM(__t, __z) ((__t *) &__z)[1]
  54 #define D_RE(__z)       _X_RE(double, __z)
  55 #define D_IM(__z)       _X_IM(double, __z)
  56 #define F_RE(__z)       _X_RE(float, __z)
  57 #define F_IM(__z)       _X_IM(float, __z)
  58 #define LD_RE(__z)      _X_RE(long double, __z)
  59 #define LD_IM(__z)      _X_IM(long double, __z)
  60
  61 #include <complex.h>
  62 #endif
  63
  64 #if defined(__sparc)
  65 #define HIWORD  0
  66 #define LOWORD  1
  67 #define HI_XWORD(x)     ((unsigned *) &x)[0]
  68 #define XFSCALE(x, n)   ((unsigned *) &x)[0] += n << 16 /* signbitl(x) == 0 */
  69 #define CHOPPED(x)      ((long double) ((double) (x)))
  70 #elif defined(__x86)
  71 #define HIWORD  1
  72 #define LOWORD  0
  73 #define HI_XWORD(x)     ((((int *) &x)[2] << 16) | \
  74                         (0xffff & ((unsigned *) &x)[1] >> 15))
  75 #define XFSCALE(x, n)   ((unsigned short *) &x)[4] += n /* signbitl(x) == 0 */
  76 #define CHOPPED(x)      ((long double) ((float) (x)))
  77 #else
  78 #error Unknown architecture
  79 #endif
  80 #define HI_WORD(x)      ((int *) &x)[HIWORD]    /* for double */
  81 #define LO_WORD(x)      ((int *) &x)[LOWORD]    /* for double */
  82 #define THE_WORD(x)     ((int *) &x)[0]         /* for float */
  83
  84 /*
  85  * iy:ly must have the sign bit already cleared
  86  */
  87 #define ISINF(iy, ly)   (((iy - 0x7ff00000) | ly) == 0)
  88
  89 #endif  /* _COMPLEX_WRAPPER_H */