5261 libm should stop using synonyms.h

          --- old/usr/src/lib/libm/common/C/remainder.c
          +++ new/usr/src/lib/libm/common/C/remainder.c

   1    1  /*
   2    2   * CDDL HEADER START
   3    3   *
   4    4   * The contents of this file are subject to the terms of the
   5    5   * Common Development and Distribution License (the "License").
   6    6   * You may not use this file except in compliance with the License.
   7    7   *
   8    8   * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9    9   * or http://www.opensolaris.org/os/licensing.
  10   10   * See the License for the specific language governing permissions
  11   11   * and limitations under the License.
  12   12   *
  13   13   * When distributing Covered Code, include this CDDL HEADER in each
  14   14   * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15   15   * If applicable, add the following below this CDDL HEADER, with the
  16   16   * fields enclosed by brackets "[]" replaced with your own identifying
  17   17   * information: Portions Copyright [yyyy] [name of copyright owner]
  18   18   *

  19   19   * CDDL HEADER END
  20   20   */
  21   21  /*
  22   22   * Copyright 2011 Nexenta Systems, Inc.  All rights reserved.
  23   23   */
  24   24  /*
  25   25   * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
  26   26   * Use is subject to license terms.
  27   27   */
  28   28  
  29      -#pragma weak remainder = __remainder
       29 +#pragma weak __remainder = remainder
  30   30  
  31   31  /*
  32   32   * remainder(x,p)
  33   33   * Code originated from 4.3bsd.
  34   34   * Modified by K.C. Ng for SUN 4.0 libm.
  35   35   * Return :
  36   36   *      returns  x REM p  =  x - [x/p]*p as if in infinite precise arithmetic,
  37   37   *      where [x/p] is the (inifinite bit) integer nearest x/p (in half way
  38   38   *      case choose the even one).
  39   39   * Method :

  40   40   *      Based on fmod() return x-[x/p]chopped*p exactly.
  41   41   */
  42   42  
  43   43  #include "libm.h"
  44   44  
  45   45  static const double zero = 0.0, half = 0.5;
  46   46  
  47   47  double
  48   48  remainder(double x, double p) {
  49   49          double  halfp;
  50   50          int     ix, hx, hp;
  51   51  
  52   52          ix = ((int *)&x)[HIWORD];
  53   53          hx = ix & ~0x80000000;
  54   54          hp = ((int *)&p)[HIWORD] & ~0x80000000;
  55   55  
  56   56          if (hp > 0x7ff00000 || (hp == 0x7ff00000 && ((int *)&p)[LOWORD] != 0))
  57   57                  return (x * p);
  58   58          if (hx > 0x7ff00000 || (hx == 0x7ff00000 && ((int *)&x)[LOWORD] != 0))
  59   59                  return (x * p);
  60   60  
  61   61          if ((hp | ((int *)&p)[LOWORD]) == 0 || hx == 0x7ff00000)
  62   62                  return (_SVID_libm_err(x, p, 28));
  63   63  
  64   64          p = fabs(p);
  65   65          if (hp < 0x7fe00000)
  66   66                  x = fmod(x, p + p);
  67   67          x = fabs(x);
  68   68          if (hp < 0x00200000) {
  69   69                  if (x + x > p) {
  70   70                          if (x == p)     /* avoid x-x=-0 in RM mode */
  71   71                                  return ((ix < 0)? -zero : zero);
  72   72                          x -= p;
  73   73                          if (x + x >= p)
  74   74                                  x -= p;
  75   75                  }
  76   76          } else {
  77   77                  halfp = half * p;
  78   78                  if (x > halfp) {
  79   79                          if (x == p)     /* avoid x-x=-0 in RM mode */
  80   80                                  return ((ix < 0)? -zero : zero);
  81   81                          x -= p;
  82   82                          if (x >= halfp)
  83   83                                  x -= p;
  84   84                  }
  85   85          }
  86   86          return ((ix < 0)? -x : x);
  87   87  }

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