How to make the video added to the folder automatically added to the html site?

Question

css

I want that when I move a video to a certain folder, the video is immediately uploaded to the site and displayed. Like YouTube.
Or make it so that you can upload the video to the site through the site itself.
And all this with the help of html, java, css
I want to make a personal YouTube

Answer 1

in.seekg (ios::end);
To read the last character, you must stand not at the end, but one character earlier. In your case, there is nothing to read.
This will only take you back one character you just read.
If the files are small, it will be easier to read it all into a std::vector, and then just copy it to the output file:

std::vector<char> cts;
in.seekg(0, in.end);
cts.resize(in.tellg());
in.seekg(0, in.beg);

in.read(&ctr[0], ctr.size());

std::ostream_iterator<char> out_it(out);
std::copy(cts.rbegin(), cts.rend(), out);