Function copy_file

example/mbcopy.cpp:32–63

we can't use boost::filesystem::copy_file() because the argument types differ, so provide a not-very-smart replacement.

// we can't use boost::filesystem::copy_file() because the argument types
// differ, so provide a not-very-smart replacement.
void copy_file(const fs::wpath& from, const user::mbpath& to)
{
    fs::ifstream from_file(from, std::ios_base::in | std::ios_base::binary);
    if (!from_file)
    {
        std::cout << "input open failed\n";
        return;
    }

    fs::ofstream to_file(to, std::ios_base::out | std::ios_base::binary);
    if (!to_file)
    {
        std::cout << "output open failed\n";
        return;
    }

    char c;
    while (from_file.get(c))
    {
        to_file.put(c);
        if (to_file.fail())
        {
            std::cout << "write error\n";
            return;
        }
    }

    if (!from_file.eof())
    {
        std::cout << "read error\n";
    }
}

} // namespace