INNER CODE UNIT · Go

isMidValLessTarget

duke-git/lancet · algorithm/search.go:33

	isMidValLessTarget := comparator.Compare(sortedSlice[midIndex], target) == -1

	if isMidValGreatTarget {
		return BinarySearch(sortedSlice, target, lowIndex, midIndex-1, comparator)
	} else if isMidValLessTarget {
		return BinarySearch(sortedSlice, target, midIndex+1, highIndex, comparator)
	}

	return midIndex
}

// BinaryIterativeSearch return the index of target within a sorted slice, use binary search (no recursive).
// If not found return -1.
// Play: https://go.dev/play/p/Anozfr8ZLH3
func BinaryIterativeSearch[T any](sortedSlice []T, target T, lowIndex, highIndex int, comparator constraints.Comparator) int {
	if len(sortedSlice) == 0 {
		return -1
	}

View source record →