5261 libm should stop using synonyms.h
5298 fabs is 0-sized, confuses dis(1) and others
Reviewed by: Josef 'Jeff' Sipek <jeffpc@josefsipek.net>
Approved by: Gordon Ross <gwr@nexenta.com>

          --- old/usr/src/lib/libm/common/Q/floorl.c
          +++ new/usr/src/lib/libm/common/Q/floorl.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  /*
  23   23   * Copyright 2011 Nexenta Systems, Inc.  All rights reserved.
  24   24   */
  25   25  /*
  26   26   * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
  27   27   * Use is subject to license terms.

  28   28   */
  29   29  
  30   30  /*
  31   31   * ceill(x)     return the biggest integral value below x
  32   32   * floorl(x)    return the least integral value above x
  33   33   *
  34   34   * NOTE: aintl(x), anintl(x), ceill(x), floorl(x), and rintl(x) return result
  35   35   * with the same sign as x's,  including 0.0.
  36   36   */
  37   37  
  38      -#pragma weak ceill = __ceill
  39      -#pragma weak floorl = __floorl
       38 +#pragma weak __ceill = ceill
       39 +#pragma weak __floorl = floorl
  40   40  
  41   41  #include "libm.h"
  42   42  #include "longdouble.h"
  43   43  
  44   44  static const long double qone = 1.0L;
  45   45  
  46   46  long double
  47   47  ceill(long double x) {
  48   48          long double t;
  49   49  

  50   50          if (!finitel(x))
  51   51                  return (x + x);
  52   52          t = rintl(x);
  53   53          if (t >= x)                     /* already ceil(x) */
  54   54                  return (t);
  55   55          else                            /* t < x case: return t+1  */
  56   56                  return (copysignl(t + qone, x));
  57   57  }
  58   58  
  59   59  long double
  60   60  floorl(long double x) {
  61   61          long double t;
  62   62  
  63   63          if (!finitel(x))
  64   64                  return (x + x);
  65   65          t = rintl(x);
  66   66          if (t <= x)
  67   67                  return (t);             /* already floor(x) */
  68   68          else                            /* x < t case: return t-1  */
  69   69              return (copysignl(t - qone, x));
  70   70  }

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