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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 log10f = __log10f
  30 
  31 #include "libm.h"
  32 
  33 static const float zero = 0.0f, mone = -1.0f;
  34 
  35 float
  36 log10f(float x) {
  37         int     hx, ix;
  38         float   w;
  39 
  40         hx = *(int *)&x;
  41         ix = hx & ~0x80000000;
  42         if (ix > 0x7f800000)
  43                 return (x * x);
  44         if (ix == 0x7f800000)
  45                 return (x + x * x);
  46         if (ix == 0) {
  47                 w = mone;
  48                 return (w / zero);
  49         }


   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 __log10f = log10f
  30 
  31 #include "libm.h"
  32 
  33 static const float zero = 0.0f, mone = -1.0f;
  34 
  35 float
  36 log10f(float x) {
  37         int     hx, ix;
  38         float   w;
  39 
  40         hx = *(int *)&x;
  41         ix = hx & ~0x80000000;
  42         if (ix > 0x7f800000)
  43                 return (x * x);
  44         if (ix == 0x7f800000)
  45                 return (x + x * x);
  46         if (ix == 0) {
  47                 w = mone;
  48                 return (w / zero);
  49         }