获取磁盘剩余容量-----c++

获取磁盘剩余容量

#include <filesystem>

struct DiskSpaceInfo 
{
    double total{ 0.0 };
    double free{ 0.0 };
    double available{ 0.0 };

    double used_rate{ 0.0 };
    double available_rate{ 0.0 };
};

DiskSpaceInfo getDiskSpace(const std::string& path) 
{
    std::filesystem::space_info si = std::filesystem::space(path);

    DiskSpaceInfo info;
    info.total = static_cast<double>(si.capacity) / (1024 * 1024 * 1024);
    info.free = static_cast<double>(si.free) / (1024 * 1024 * 1024);
    info.available = static_cast<double>(si.available) / (1024 * 1024 * 1024);
    
    info.used_rate = (info.total - info.available) / info.total;
    info.available_rate = info.available / info.total;

    return info;
}

int main() 
{
    DiskSpaceInfo info = getDiskSpace("D:\\");
    
    std::cout << "Total space: " << info.total << " GB" << std::endl;
    std::cout << "Free space: " << info.free << " GB" << std::endl;
    std::cout << "Available space: " << info.available << " GB" << std::endl;
    std::cout << "Used space rate: " << info.used_rate << std::endl;
    std::cout << "Available space rate: " << info.available_rate << std::endl;

    return 0;
}