BitVecPrefixMatch
- Function
- October 8, 2025
Table of Contents
BitVecPrefixMatch
BitVecPrefixMatchDescription
Match bitvector against an array of prefix patterns. Returns the index of the first matching prefix.
Parameters
| Name | Direction | Description |
|---|---|---|
bv | in | BitVec to check |
patterns | in | Vec(BitVec) to check prefices against |
Usage example (from documentation)
BitVec prefixes[3] = { pattern1, pattern2, pattern3 };
u64 match = BitVecPrefixMatch(&data, prefixes, 3);
Usage example (Cross-references)
- In
BitVec.c:1608:
}
u64 BitVecPrefixMatch(BitVec *bv, BitVecs *patterns) {
ValidateBitVec(bv);
if (!patterns) {
// BitVecPrefixMatch tests
bool test_bitvec_prefix_match_basic(void) {
WriteFmt("Testing BitVecPrefixMatch basic functionality\n");
BitVec source = BitVecInit();
BitVecPush(&patterns[2], true);
u64 match_idx = BitVecPrefixMatch(&source, patterns, 3);
result = result && (match_idx == 1);
bool test_bitvec_prefix_match_null_source(void) {
WriteFmt("Testing BitVecPrefixMatch(NULL, patterns, 1) - should fatal\n");
BitVec patterns[1] = {BitVecInit()};
BitVecPush(&patterns[0], true);
BitVec patterns[1] = {BitVecInit()};
BitVecPush(&patterns[0], true);
BitVecPrefixMatch(NULL, patterns, 1);
BitVecDeinit(&patterns[0]);
return true;
bool test_bitvec_prefix_match_null_patterns(void) {
WriteFmt("Testing BitVecPrefixMatch(source, NULL, 1) - should fatal\n");
BitVec source = BitVecInit();
BitVecPush(&source, true);
BitVec source = BitVecInit();
BitVecPush(&source, true);
BitVecPrefixMatch(&source, NULL, 1);
BitVecDeinit(&source);
return true;
bool test_bitvec_prefix_match_null_source(void) {
WriteFmt("Testing BitVecPrefixMatch(NULL, patterns, 1) - should fatal\n");
BitVecs vp = VecInitWithDeepCopy(NULL, BitVecDeinit);
BitVecPush(VecPtrAt(&vp, 0), true);
BitVecs vp = VecInitWithDeepCopy(NULL, BitVecDeinit);
BitVecPush(VecPtrAt(&vp, 0), true);
BitVecPrefixMatch(NULL, &vp);
VecDeinit(&vp);
return true;
bool test_bitvec_prefix_match_null_patterns(void) {
WriteFmt("Testing BitVecPrefixMatch(source, NULL, 1) - should fatal\n");
BitVec source = BitVecInit();
BitVecPush(&source, true);
BitVec source = BitVecInit();
BitVecPush(&source, true);
BitVecPrefixMatch(&source, NULL);
BitVecDeinit(&source);
return true;
// BitVecPrefixMatch tests
bool test_bitvec_prefix_match_basic(void) {
WriteFmt("Testing BitVecPrefixMatch basic functionality\n");
BitVec source = BitVecInit();
BitVecPush(p2, true);
u64 match_idx = BitVecPrefixMatch(&source, &patterns);
result = result && (match_idx == 1);