org.magicwerk.brownies.collections.helper.primitive

Class DoubleBinarySearch

java.lang.Object

org.magicwerk.brownies.collections.helper.primitive.DoubleBinarySearch

public class DoubleBinarySearch
extends java.lang.Object

Binary search for primitive type double.

Constructor Summary

Constructors

Constructor and Description
DoubleBinarySearch()

Method Summary

Modifier and Type	Method and Description
static int	binarySearch(org.magicwerk.brownies.collections.primitive.IDoubleList list, double key, int lower, int upper) Searches the specified list for the specified object using the binary search algorithm.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

DoubleBinarySearch

public DoubleBinarySearch()

Method Detail

binarySearch

public static int binarySearch(org.magicwerk.brownies.collections.primitive.IDoubleList list,
                               double key,
                               int lower,
                               int upper)

Searches the specified list for the specified object using the binary search algorithm. The list must be sorted into ascending order according to the specified comparator (as by the Collections.sort(List, Comparator) method), prior to making this call. If it is not sorted, the results are undefined.

This method runs in log(n) time on random-access lists, which offer near-constant-time access to each list element.

Parameters:

list - the list to be searched.

key - the value to be searched for.

lower - lower bound of range to search

upper - upper bound of range to search

Returns:

the index of the search key, if it is contained in the list; otherwise, (-(insertion point) - 1).