previousSetBit

Native

1.3

fun previousSetBit(startIndex: Int): Int
(source)

Returns the biggest index of a bit which value is true before startIndex (inclusive). Returns -1 if there is no such bits before startIndex or if startIndex == -1. If startIndex >= size will search from (size - 1)-th bit.

Exceptions

IndexOutOfBoundException - if startIndex < -1.