sysdeps/ia64/fpu/s_frexp.c

   1 /* file: frexp.c */
   2
   3
   4 // Copyright (c) 2000-2002, Intel Corporation
   5 // All rights reserved.
   6 //
   7 // Contributed 2000 by the Intel Numerics Group, Intel Corporation
   8 //
   9 // Redistribution and use in source and binary forms, with or without
  10 // modification, are permitted provided that the following conditions are
  11 // met:
  12 //
  13 // * Redistributions of source code must retain the above copyright
  14 // notice, this list of conditions and the following disclaimer.
  15 //
  16 // * Redistributions in binary form must reproduce the above copyright
  17 // notice, this list of conditions and the following disclaimer in the
  18 // documentation and/or other materials provided with the distribution.
  19 //
  20 // * The name of Intel Corporation may not be used to endorse or promote
  21 // products derived from this software without specific prior written
  22 // permission.
  23
  24 //
  25 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  26 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  27 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  28 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL INTEL OR ITS
  29 // CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  30 // EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  31 // PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  32 // PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
  33 // OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY OR TORT (INCLUDING
  34 // NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  35 // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  36 //
  37 // Intel Corporation is the author of this code, and requests that all
  38 // problem reports or change requests be submitted to it directly at
  39 // http://www.intel.com/software/products/opensource/libraries/num.htm.
  40 //
  41 //
  42 // History
  43 //=====================================================================
  44 //  2/02/00  Initial version
  45 //  1/23/02  Calls kernel with parameter to specify 32- or 64-bit int
  46 //
  47 //=====================================================================
  48
  49 #include "libm_support.h"
  50
  51 double __libm_frexp(double, int*, int);
  52
  53 double frexp(double x, int *y)
  54 {
  55
  56 #ifdef SIZE_INT_64
  57    return( __libm_frexp(x, y, 1) );
  58
  59 #else
  60
  61 #ifdef SIZE_INT_32
  62    return( __libm_frexp(x, y, 0) );
  63 #endif
  64
  65 #endif
  66
  67 }