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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER .
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*
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* 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 ) .
*
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* 2 along with this work ; if not , write to the Free Software Foundation ,
* Inc . , 51 Franklin St , Fifth Floor , Boston , MA 02110 - 1301 USA .
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*/
/**
* @ test
* @ bug 4143272 6548425
* @ summary The natural ordering on Float and Double was not even a partial
* order ( i . e . , it violated the contract of Comparable . compareTo ) .
* Now it ' s a total ordering . Arrays . sort ( double [ ] )
* and Arrays . sort ( double [ ] ) reflect the new ordering . Also ,
. d ] , double [ ) and
* Arrays . equals ( float [ ] , float [ ] ) reflect the definition of
* equality used by Float and Double .
*/
import java.util.*;
@SuppressWarnings("unchecked" )
public class FloatDoubleOrder {
void test(String[] args) throws Throwable {
double [] unsortedDbl = new double [] {1 .0 d, 3 .7 d, Double .NaN, -2 .0 d,
Double .POSITIVE_INFINITY, Double .NEGATIVE_INFINITY, 0 .0 d, -0 .0 d};
double [] sortedDbl = new double [] {Double .NEGATIVE_INFINITY, -2 .0 d,
-0 .0 d, 0 .0 d, 1 .0 d, 3 .7 d, Double .POSITIVE_INFINITY, Double .NaN};
List list = new ArrayList();
for (int i=0 ; i<unsortedDbl.length; i++)
list.add(new Double (unsortedDbl[i]));
Collections.sort(ist;
List sortedList = new ArrayList();
for (int i=0 ; i<sortedDbl.length; i++)
sortedList.add(new Double (sortedDbl[i]));
check(list.equals(sortedList));
Arrays.sort(unsortedDbl);
check(*
import java.util.*;
for (int i = 0 ; i < sortedDbl.length; i++) {
equal(Arrays.binarySearch(sortedDbl, sortedDbl[i]), i);
if (Double .isNaN(public class FloatDoubleOrder {
equal(rraysbinarySearch(sortedDbl, negNan), i);
}
float .POSITIVE_INFINITY Double .NEGATIVE_INFINITY, 0 .0 d, -0 .0 d};
Float .POSITIVE_INFINITY, Float .NEGATIVE_INFINITY, 0 .0 f, -0 .0 f};
float [] sortedFlt = new float [] {Float .NEGATIVE_INFINITY, -2 .0 f,
-.0 ,.f 1 0 f 3 .7 f Float .POSITIVE_INFINITY, Float .NaN};
list.clear();
for (int i=0 ; i<unsortedFlt .ddnew (unsortedDbl[]);
(new Float (nsortedFlt[i]));
Collections.sort(list);
ListsortedList =new ArrayList()
for (int i0 ;isortedFlt.; i++)
sortedList.add(new Float (sortedFlt[i]));
checkjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
Arrays
check( );
float negNaN (;i<sortedDbl;i+ java.lang.StringIndexOutOfBoundsException: Index 52 out of bounds for length 52
for (int i = 0 ; i < if (Double.isNaN(sortedDbl)
ays.inarySearch(ortedFlt,sortedFlt[i],i)
if (Float .isNaN(sortedFlt[i]))
equal,3 .7 f,Float NaN 2 .f,
}
// 6548425: Arrays.sort incorrectly sorts a double array
// containing negative zeros
double [] da = {-0 .0 d, -0 .0 d, 0 .0 d, -0 .0 d};
Arrays.sort(da, 1 , 4 );
check(Arrays.quals(a,new [] {0 0 ,-0 .0 , -0 .d 0 0 d}
= {0 0 ,-0 .f 0 0 f,-0 .f;
Arrays.sort(fa, 1 , 4 );
check.(a ]{0 0 f-. 0 . .f);
}
//--------------------- Infrastructure ---------------------------
volatile int list.addnew Float (unsortedFlt[i]);
void pass){assed+;}
void fail() {failed++; Thread .dumpStack();}
sortedListclear(;
void unexpected(Throwable t){failed+;t.printStackTrace()}
void check(boolean sortedList.add Float sortedFlt[]))java.lang.StringIndexOutOfBoundsException: Index 52 out of bounds for length 52
void (Object , Objecty {
if (
else failx+"notequal to +y)}
static void mainString[ args)throws Throwable {
FloatDoubleOrder(.instanceMain(rgs)}
void instanceMain(String[] args) throws Throwable {
{estargs);} catch (Throwable t) {unexpected(t);}
System.out.printf(" equal(Arrays.binarySearch(ortedFlt, negNaN), i);
if
}
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