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// Tags: JDK1.5
// Copyright (C) 2006 Carsten Neumann <cn-develop@gmx.net>
// update for strictfp modifier Pavel Tisnovsky <ptisnovs@redhat.com>
// This file is part of Mauve.
// Mauve is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2, or (at your option)
// any later version.
// Mauve is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with Mauve; see the file COPYING. If not, write to
// the Free Software Foundation, 59 Temple Place - Suite 330,
// Boston, MA 02111-1307, USA.
package gnu.testlet.java.lang.Math.strictfp_modifier;
import gnu.testlet.Testlet;
import gnu.testlet.TestHarness;
public strictfp class cosh implements Testlet
{
/**
* These values are used as arguments to cosh.
* The values are somewhat arbitrary, but ensure that all code paths
* are tested.
*/
private static double[] inputValues =
{
0.0,
Double.NaN,
Double.POSITIVE_INFINITY,
Double.NEGATIVE_INFINITY,
0.123456789,
-0.123456789,
0.234242656456,
-0.234242656456,
1.23456789,
-1.23456789,
9.87654321,
-9.87654321,
21.9999,
-21.9999,
567.891234,
-567.891234,
708.742342,
-708.742342,
709.7827128,
-709.7827128,
710.475860073943,
710.4755859375,
723.6787676346,
-723.6787676346,
};
/**
* These values are the expected results, obtained from the RI.
*/
private static double[] outputValues =
{
1.0,
Double.NaN,
Double.POSITIVE_INFINITY,
Double.POSITIVE_INFINITY,
1.0076304736991977,
1.0076304736991977,
1.0275604855232756,
1.0275604855232756,
1.8639267730274125,
1.8639267730274125,
9734.154204183918,
9734.154204183918,
1.792277186385473e9,
1.792277186385473e9,
2.1428869091881118e246,
2.1428869091881118e246,
3.1758371607555525e307,
3.1758371607555525e307,
8.988464834932886e307,
8.988464834932886e307,
1.7976931348605396e308,
1.7972003892018829e308,
Double.POSITIVE_INFINITY,
Double.POSITIVE_INFINITY
};
private static long[] NaNValues =
{
0x7fff800000000000L,
0xffff800000000000L,
0x7fff812345abcdefL,
0xffff812345abcdefL,
0x7fff000000000001L,
0xffff000000000001L,
0x7fff7654321fedcbL,
0xffff7654321fedcbL
};
private void testInputValues(TestHarness harness)
{
double res;
for (int i = 0; i < inputValues.length; ++i)
{
res = Math.cosh(inputValues[i]);
// exact equality
harness.check(Double.doubleToLongBits(res), Double.doubleToLongBits(outputValues[i]));
}
}
/**
* Test if input NaN is returned unchanged.
*/
private void testNaN(TestHarness harness)
{
long bitsNaN;
double valNaN;
for (int i = 0; i < NaNValues.length; ++i)
{
bitsNaN = NaNValues[i];
valNaN = Double.longBitsToDouble(bitsNaN);
// exact equality
harness.check(Double.doubleToRawLongBits(Math.cosh(valNaN)),
bitsNaN);
}
}
public void test(TestHarness harness)
{
testInputValues(harness);
testNaN(harness);
}
/**
* Run this on the RI to obtain the expected output values.
*/
public static void main(String[] argv)
{
double res;
for (int i = 0; i < inputValues.length; ++i)
{
res = Math.cosh(inputValues[i]);
System.out.println(Double.toString(res));
}
}
}
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