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1/* file: ldexp.c */
2
3
4// Copyright (c) 2000, 2001, 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
43#include "libm_support.h"
44
45double __libm_ldexp(double, int, int);
46
47
48double ldexp(double x, int n)
49{
50
51#ifdef SIZE_INT_64
52 return __libm_ldexp(x,n,1);
53#else
54
55#ifdef SIZE_INT_32
56 return __libm_ldexp(x,n,0);
57#endif
58
59#endif
60
61}