用c ++交换文件中的字节

#include <iostream>
#include <fstream>
#include <cstdint>

int main() {
    std::ifstream inputFile("input.bin", std::ios::binary);
    std::ofstream outputFile("output.bin", std::ios::binary);

    if (inputFile && outputFile) {
        // 获取文件大小
        inputFile.seekg(0, std::ios::end);
        std::streampos fileSize = inputFile.tellg();
        inputFile.seekg(0, std::ios::beg);

        // 创建缓冲区
        char* buffer = new char[fileSize];

        // 读取文件内容
        inputFile.read(buffer, fileSize);

        // 字节交换
        for (std::streampos i = 0; i < fileSize; i += 2) {
            uint8_t byte1 = buffer[i];
            uint8_t byte2 = buffer[i + 1];
            buffer[i] = byte2;
            buffer[i + 1] = byte1;
        }

        // 写入文件
        outputFile.write(buffer, fileSize);

        // 释放缓冲区
        delete[] buffer;

        std::cout << "字节交换完成。" << std::endl;
    } else {
        std::cout << "无法打开文件。" << std::endl;
    }

    inputFile.close();
    outputFile.close();

    return 0;
}