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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>


   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  * Copyright 2011 Nexenta Systems, Inc.  All rights reserved.
  23  */
  24 /*
  25  * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
  26  * Use is subject to license terms.
  27  */
  28 
  29 #pragma weak nextafter = __nextafter
  30 #pragma weak _nextafter = __nextafter
  31 
  32 #include "libm.h"
  33 #include <float.h>                /* DBL_MIN */
  34 
  35 double
  36 nextafter(double x, double y) {
  37         int             hx, hy, k;
  38         double          ans;
  39         unsigned        lx;
  40         volatile double dummy;
  41 
  42         hx = ((int *)&x)[HIWORD];
  43         lx = ((int *)&x)[LOWORD];
  44         hy = ((int *)&y)[HIWORD];
  45         k = (hx & ~0x80000000) | lx;
  46 
  47         if (x == y)
  48                 return (y);             /* C99 requirement */
  49         if (x != x || y != y)
  50                 return (x * y);




   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  * Copyright 2011 Nexenta Systems, Inc.  All rights reserved.
  23  */
  24 /*
  25  * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
  26  * Use is subject to license terms.
  27  */
  28 
  29 #pragma weak __nextafter = nextafter
  30 #pragma weak _nextafter = nextafter
  31 
  32 #include "libm.h"
  33 #include <float.h>                /* DBL_MIN */
  34 
  35 double
  36 nextafter(double x, double y) {
  37         int             hx, hy, k;
  38         double          ans;
  39         unsigned        lx;
  40         volatile double dummy;
  41 
  42         hx = ((int *)&x)[HIWORD];
  43         lx = ((int *)&x)[LOWORD];
  44         hy = ((int *)&y)[HIWORD];
  45         k = (hx & ~0x80000000) | lx;
  46 
  47         if (x == y)
  48                 return (y);             /* C99 requirement */
  49         if (x != x || y != y)
  50                 return (x * y);