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 nextafterf = __nextafterf
  31 
  32 #include "libm.h"
  33 
  34 float
  35 nextafterf(float x, float y) {
  36         float w;
  37         int *pw = (int *) &w;
  38         int *px = (int *) &x;
  39         int *py = (int *) &y;
  40         int ix, iy, iz;
  41 
  42         ix = px[0];
  43         iy = py[0];
  44         if ((ix & ~0x80000000) > 0x7f800000)
  45                 return (x * y);         /* + -> * for Cheetah */
  46         if ((iy & ~0x80000000) > 0x7f800000)
  47                 return (y * x);         /* + -> * for Cheetah */
  48         if (ix == iy || (ix | iy) == 0x80000000)
  49                 return (y);             /* C99 requirement */
  50         if ((ix & ~0x80000000) == 0)

  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 __nextafterf = nextafterf
  31 
  32 #include "libm.h"
  33 
  34 float
  35 nextafterf(float x, float y) {
  36         float w;
  37         int *pw = (int *) &w;
  38         int *px = (int *) &x;
  39         int *py = (int *) &y;
  40         int ix, iy, iz;
  41 
  42         ix = px[0];
  43         iy = py[0];
  44         if ((ix & ~0x80000000) > 0x7f800000)
  45                 return (x * y);         /* + -> * for Cheetah */
  46         if ((iy & ~0x80000000) > 0x7f800000)
  47                 return (y * x);         /* + -> * for Cheetah */
  48         if (ix == iy || (ix | iy) == 0x80000000)
  49                 return (y);             /* C99 requirement */
  50         if ((ix & ~0x80000000) == 0)