从std :: vector <bool>获取字节

#include<iostream>
#include<vector>

std::vector<unsigned char> convertVector(const std::vector<bool>& input) {
    std::vector<unsigned char> output;
    int byte = 0;
    int bit_index = 0;

    for (const bool bit : input) {
        if (bit_index == 8) {
            output.push_back(byte);
            byte = 0;
            bit_index = 0;
        }

        byte |= static_cast<unsigned char>(bit) << (7 - bit_index);
        bit_index++;
    }

    if (bit_index > 0) {
        output.push_back(byte);
    }

    return output;
}

int main() {
    std::vector<bool> input = {1, 0, 1, 1, 0, 1, 0, 1};
    std::vector<unsigned char> output = convertVector(input);

    for (const unsigned char byte : output) {
        std::cout<< static_cast<int>(byte) << " ";
    }

    return 0;
}