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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>
5262 libm needs to be carefully unifdef'd
5268 libm doesn't need to hide symbols which are already local
Reviewed by: Josef 'Jeff' Sipek <jeffpc@josefsipek.net>
Reviewed by: Igor Kozhukhov <ikozhukhov@gmail.com>
Reviewed by: Gordon Ross <gwr@nexenta.com>
Approved by: Gordon Ross <gwr@nexenta.com>


  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 #if defined(ELFOBJ)
  31 #pragma weak round = __round
  32 #endif
  33 
  34 #include "libm.h"
  35 
  36 double
  37 round(double x) {
  38         union {
  39                 unsigned i[2];
  40                 double d;
  41         } xx;
  42         unsigned hx, sx, i;
  43 
  44         xx.d = x;
  45         hx = xx.i[HIWORD] & ~0x80000000;
  46         sx = xx.i[HIWORD] & 0x80000000;
  47         if (hx < 0x43300000) {       /* |x| < 2^52 */
  48                 if (hx < 0x3ff00000) {       /* |x| < 1 */
  49                         if (hx >= 0x3fe00000)
  50                                 return (sx ? -1.0 : 1.0);
  51                         return (sx ? -0.0 : 0.0);
  52                 }




  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 #pragma weak __round = round


  31 
  32 #include "libm.h"
  33 
  34 double
  35 round(double x) {
  36         union {
  37                 unsigned i[2];
  38                 double d;
  39         } xx;
  40         unsigned hx, sx, i;
  41 
  42         xx.d = x;
  43         hx = xx.i[HIWORD] & ~0x80000000;
  44         sx = xx.i[HIWORD] & 0x80000000;
  45         if (hx < 0x43300000) {       /* |x| < 2^52 */
  46                 if (hx < 0x3ff00000) {       /* |x| < 1 */
  47                         if (hx >= 0x3fe00000)
  48                                 return (sx ? -1.0 : 1.0);
  49                         return (sx ? -0.0 : 0.0);
  50                 }