/guava/guava/src/com/google/common/collect/Lists.java
return ( index - 1) - size;
return ( size - 1 ) - index;
List<T> getForwardList() { return forwardList; } private int reverseIndex(int index) { int size = size(); checkElementIndex(index, size); <extra_id_0> } private int reversePosition(int index) { int size = size(); checkPositionIndex(index, size); return size - index; }