ListForeachPtrReverseInRange
- Macro
- October 8, 2025
Table of Contents
ListForeachPtrReverseInRange
ListForeachPtrReverseInRangeDescription
Iterate over each element var (as a pointer) of the given list l in reverse, limited to index range [start, end) relative to the tail of the list. Index 0 corresponds to the tail, 1 to the previous node, and so on. The variable var is declared and defined by this macro as a pointer to the list’s data type. Since linked lists do not support indexing, this macro counts nodes from the tail and includes only those where the relative reverse index lies in [start, end).
Parameters
| Name | Direction | Description |
|---|---|---|
l | in,out | List to iterate over. |
var | out | Name of the pointer variable to be used which will point to the current element during iteration. |
start | in | Starting index from tail (inclusive). |
end | in | Ending index from tail (exclusive). |
Usage example (Cross-references)
- In
ListInt.c:349:
if (start < end) {
int sum = 0;
ListForeachPtrReverseInRange(list, item_ptr, start, end) {
sum += *item_ptr;
}