为什么C和C++版本的代码之间的CRC计算是不同的？

#include <stdio.h>
#include <stdint.h>

uint32_t crc32(const uint8_t *data, size_t length) {
    uint32_t crc = 0xFFFFFFFF;
    for (size_t i = 0; i < length; ++i) {
        crc ^= data[i];
        for (int j = 0; j < 8; ++j) {
            if (crc & 1) {
                crc = (crc >> 1) ^ 0xEDB88320;
            } else {
                crc >>= 1;
            }
        }
    }
    return ~crc;
}

int main() {
    uint8_t data[] = "Hello, World!";
    uint32_t result = crc32(data, sizeof(data) - 1);
    printf("CRC32: %08X\n", result);
    return 0;
}

#include <iostream>
#include <cstdint>
#include <vector>

uint32_t crc32(const std::vector<uint8_t>& data) {
    uint32_t crc = 0xFFFFFFFF;
    for (uint8_t byte : data) {
        crc ^= byte;
        for (int j = 0; j < 8; ++j) {
            if (crc & 1) {
                crc = (crc >> 1) ^ 0xEDB88320;
            } else {
                crc >>= 1;
            }
        }
    }
    return ~crc;
}

int main() {
    std::vector<uint8_t> data = {'H', 'e', 'l', 'l', 'o', ',', ' ', 'W', 'o', 'r', 'l', 'd', '!'};
    uint32_t result = crc32(data);
    std::cout << "CRC32: " << std::hex << result << std::endl;
    return 0;
}