1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License (the "License").
   6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   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 /*
  23  * Copyright 2011 Nexenta Systems, Inc.  All rights reserved.
  24  */
  25 
  26 /*
  27  * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
  28  * Use is subject to license terms.
  29  */
  30 
  31 #pragma weak __remainderf = remainderf
  32 
  33 #include "libm.h"
  34 
  35 float
  36 remainderf(float x, float y)
  37 {
  38         if (isnanf(x) || isnanf(y))
  39                 return (x * y);
  40 
  41         if (y == 0.0f || (*(int *)&x & ~0x80000000) == 0x7f800000) {
  42                 /* y is 0 or x is infinite; raise invalid and return NaN */
  43                 y = 0.0f;
  44                 *(int *)&x = 0x7f800000;
  45                 return (x * y);
  46         }
  47 
  48         return ((float)remainder((double)x, (double)y));
  49 }