/*
* Copyright ( c ) 2003 , 2022 , Oracle and / or its affiliates . All rights reserved .
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER .
*
* This code is free software ; you can redistribute it and / or modify it
* under the terms of the GNU General Public License version 2 only , as
* published by the Free Software Foundation .
*
* This code 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
* version 2 for more details ( a copy is included in the LICENSE file that
* accompanied this code ) .
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work ; if not , write to the Free Software Foundation ,
* Inc . , 51 Franklin St , Fifth Floor , Boston , MA 02110 - 1301 USA .
*
* Please contact Oracle , 500 Oracle Parkway , Redwood Shores , CA 94065 USA
* or visit www . oracle . com if you need additional information or have any
* questions .
*/
import java.util.function .DoubleBinaryOperator;
import java.util.function .DoubleUnaryOperator;
/*
* Shared static test method for StrictMath tests .
*/
public class Tests {
private Tests(){}
public static int test(String testName,
double input,
DoubleUnaryOperator func,
double expected) {
return test(testName, input, func.applyAsDouble(input), expected);
}
public static int test(String testName,
double input,
double result,
double expected) {
if (Double .compare(expected, result ) != 0 ) {
System.err.println("Failure for " + testName + ":\n" +
"\tFor input " + input + "\t(" + Double .toHexString(input) + ")\n" +
"\texpected " + expected + "\t(" + Double .toHexString(expected) + ")\n" +
"\tgot " + result + "\t(" + Double .toHexString(result) + ")." );
return 1 ;
} else {
return 0 ;
}
}
public static int test(String testName,
double input1,
double input2,
DoubleBinaryOperator func,
double expected) {
return test(testName, input1, input2, func.applyAsDouble(input1, input2), expected);
}
public static int test(String testName, double input1, double input2,
double result, double expected) {
if (Double .compare(expected, result ) != 0 ) {
System.err.println("Failure for " + testName + ":\n" +
"\tFor input " + input1 + "\t(" + Double .toHexString(input1) + "), " +
+ input2 + "\t(" + Double .toHexString(input2) + ")\n" +
"\texpected " + expected + "\t(" + Double .toHexString(expected) + ")\n" +
"\tgot " + result + "\t(" + Double .toHexString(result) + ")." );
return 1 ;
} else {
return 0 ;
}
}
/**
* Returns a double over the normalized range of floating - point values .
* @ return a double over the normalized range of floating - point values
*/
static double createRandomDouble(java.util.Random random) {
final int EXPONENT_RANGE = Double .MAX_EXPONENT - Double .MIN_EXPONENT + 1 ;
int targetExponent = Double .MIN_EXPONENT + random.nextInt(EXPONENT_RANGE + 1 );
double tmp = random.nextDouble(); // Double in the range of [0.0, 1.0)
int tmpExponent = Math.getExponent(tmp);
return Math.scalb(tmp, targetExponent - tmpExponent);
}
}
Messung V0.5 in Prozent C=96 H=93 G=94
¤ Dauer der Verarbeitung: 0.8 Sekunden
(vorverarbeitet am 2026-10-11)
¤
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