29 lines
693 B
Java
29 lines
693 B
Java
|
/*
|
||
|
|
* Javolution - Java(TM) Solution for Real-Time and Embedded Systems
|
||
|
|
* Copyright (C) 2006 - Javolution (http://javolution.org/)
|
||
|
|
* All rights reserved.
|
||
|
|
*
|
||
|
|
* Permission to use, copy, modify, and distribute this software is
|
||
|
|
* freely granted, provided that this notice is preserved.
|
||
|
|
*/
|
||
|
|
|
||
|
|
public final class PR31264
|
||
|
|
{
|
||
|
|
public static long fubar(double d, int n)
|
||
|
|
{
|
||
|
|
long bits = Double.doubleToRawLongBits(d);
|
||
|
|
int exp = ((int)(bits >> 52)) & 0x7FF;
|
||
|
|
long m = bits & 0x000fffffffffffffL;
|
||
|
|
if (exp == 0)
|
||
|
|
{
|
||
|
|
if (m == 0) return 0L;
|
||
|
|
return fubar(d * 18014398509481984L, n - 54); // 2^54 Exact.
|
||
|
|
}
|
||
|
|
return m;
|
||
|
|
}
|
||
|
|
|
||
|
|
public static void main(String[] argv)
|
||
|
|
{
|
||
|
|
}
|
||
|
|
}
|