BitVecForeachIdx
- Macro
- October 8, 2025
Table of Contents
BitVecForeachIdx
BitVecForeachIdxDescription
Iterate over each bit var of given bitvector bv at each index idx into the bitvector. The variables var and idx declared and defined by this macro. idx will start from 0 and will go till bv->length - 1
Parameters
| Name | Direction | Description |
|---|---|---|
bv | in,out | Bitvector to iterate over. |
var | in | Name of variable to be used which’ll contain bit value at iterated index idx |
idx | in | Name of variable to be used for iterating over indices. |
Usage example (Cross-references)
// Test BitVecForeachIdx macro
bool test_bitvec_foreach_idx(void) {
WriteFmt("Testing BitVecForeachIdx macro\n");
BitVec bv = BitVecInit();
bool pattern_correct = true;
BitVecForeachIdx(&bv, bit, idx) {
if (idx == 0 || idx == 2) {
pattern_correct = pattern_correct && (bit == true);
// Test foreach idx on empty bitvec
BitVecForeachIdx(&bv, bit, idx) {
(void)bit;
result = false; // Should not execute
// Test foreach idx on single element
BitVecPush(&bv, false);
BitVecForeachIdx(&bv, bit, idx) {
result = result && (idx == 0);
result = result && (bit == false);
u64 expected_idx = 0;
BitVecForeachIdx(&bv, bit, idx) {
(void)bit;
result = result && (idx == expected_idx);
count1++;
}
BitVecForeachIdx(&bv, bitval, i) {
(void)bitval;
count2++;
// Test BitVecForeachIdx macro
bool test_bitvec_foreach_idx(void) {
WriteFmt("Testing BitVecForeachIdx macro\n");
BitVec bv = BitVecInit();
bool pattern_correct = true;
BitVecForeachIdx(&bv, bit, idx) {
if (idx == 0 || idx == 2) {
pattern_correct = pattern_correct && (bit == true);
// Test foreach idx on empty bitvec
BitVecForeachIdx(&bv, bit, idx) {
(void)bit;
result = false; // Should not execute
// Test foreach idx on single element
BitVecPush(&bv, false);
BitVecForeachIdx(&bv, bit, idx) {
result = result && (idx == 0);
result = result && (bit == false);
u64 expected_idx = 0;
BitVecForeachIdx(&bv, bit, idx) {
(void)bit;
result = result && (idx == expected_idx);
count1++;
}
BitVecForeachIdx(&bv, bitval, i) {
(void)bitval;
count2++;
- In
Foreach.h:55:
/// current bit during iteration. The type of `var` will be `bool`.
///
#define BitVecForeach(bv, var) BitVecForeachIdx((bv), (var), UNPL(iter))
///