BitVecFromStr
- Function
- April 17, 2026
Table of Contents
BitVecFromStr
BitVecFromStrDescription
Create bitvector from string representation. String should contain only ‘1’ and ‘0’ characters.
Parameters
| Name | Direction | Description |
|---|---|---|
str | in | String containing bit pattern like “10110” |
Usage example (from documentation)
BitVec flags = BitVecFromString("10110");
// ... use bitvector ...
BitVecDeinit(&flags);
Usage example (Cross-references)
- In
Io.c:2770:
// Convert to BitVec using the null-terminated string
*bv = BitVecFromStr(bin_str.data);
StrDeinit(&bin_str);
- In
BitVec.c:744:
}
BitVec BitVecFromStr(const char *str) {
if (!str) {
LOG_FATAL("str is NULL");
- In
Io.Write.c:558:
// Test 1: Basic binary formatting
BitVec bv1 = BitVecFromStr("10110");
StrWriteFmt(&output, "{}", bv1);
success = success && (ZstrCompare(output.data, "10110") == 0);
// Test BitVecFromStr function
bool test_bitvec_from_string(void) {
WriteFmt("Testing BitVecFromStr\n");
// Convert from string
// Convert from string
const char *str = "1011";
BitVec bv = BitVecFromStr(str);
// Check result
// Test with empty string
BitVec empty_bv = BitVecFromStr("");
result = result && (empty_bv.length == 0);
bool test_bitvec_from_string_edge_cases(void) {
WriteFmt("Testing BitVecFromStr edge cases\n");
bool result = true;
// Test empty string
BitVec bv1 = BitVecFromStr("");
result = result && (bv1.length == 0);
BitVecDeinit(&bv1);
// Test single character
BitVec bv2 = BitVecFromStr("1");
result = result && (bv2.length == 1);
result = result && (BitVecGet(&bv2, 0) == true);
long_str[1000] = '\0';
BitVec bv3 = BitVecFromStr(long_str);
result = result && (bv3.length == 1000);
result = result && (BitVecGet(&bv3, 0) == true);
for (size_t i = 0; i < sizeof(patterns) / sizeof(patterns[0]); i++) {
BitVec bv = BitVecFromStr(patterns[i]);
Str str = BitVecToStr(&bv);
for (size_t i = 0; i < sizeof(test_cases) / sizeof(test_cases[0]); i++) {
BitVec bv = BitVecFromStr(test_cases[i].pattern);
// Test string conversion consistency
// Test cross-format validation
BitVec bv1 = BitVecFromStr("11010110");
BitVec bv2 = BitVecFromInteger(0xD6, 8); // Assuming MSB-first: 11010110 = 0xD6
BitVec bv3 = BitVecFromBytes((u8[]) {0xD6}, 8);
large_pattern[2000] = '\0';
BitVec large_from_str = BitVecFromStr(large_pattern);
result = result && (large_from_str.length == 2000);
// Test NULL string - should abort
BitVecFromStr(NULL);
return false;