VecForeachReverse
- Macro
- April 17, 2026
Table of Contents
VecForeachReverse
VecForeachReverseDescription
Iterate over each element var of the given vector v in reverse order. This is a convenience macro that iterates backward using an internally managed index. The variable var is declared and defined by this macro.
Parameters
| Name | Direction | Description |
|---|---|---|
v | in,out | Vector to iterate over. |
var | in | Name of the variable to be used which will contain the value of the current element during iteration. The type of var will be the data type of the vector elements (obtained via VEC_DATATYPE(v)). |
Usage example (Cross-references)
- In
VecCharPtr.c:511:
if (VecLen(vec) > 0) {
size_t total_len = 0;
VecForeachReverse(vec, str) {
total_len += strlen(str);
}
- In
VecStr.c:473:
if (VecLen(vec) > 0) {
size_t total_len = 0;
VecForeachReverse(vec, str) {
total_len += ZstrLen(str.data);
}
- In
VecInt.c:443:
if (VecLen(vec) > 0) {
int sum = 0;
VecForeachReverse(vec, item) {
sum += item;
}
// Test VecForeachReverse macro
bool test_vec_foreach_reverse(void) {
WriteFmt("Testing VecForeachReverse\n");
// Create a vector of integers
int reversed[5] = {0};
int idx = 0;
VecForeachReverse(&vec, item) {
reversed[idx++] = item;
}
- In
Foreach.h:92:
/// the character type used by the `Str` implementation (e.g., `char`).
///
#define StrForeachReverse(str, chr) VecForeachReverse((str), (chr))
///