ClientServerProject/libraries/terminal.h

#pragma once
#include <sys/ioctl.h>
#include <iomanip>

inline auto terminal_size()
{
    struct winsize result{};
    ioctl(STDOUT_FILENO, TIOCGWINSZ, &result);
    return std::make_tuple(result.ws_col, result.ws_row);
}

template<class CharT, class Traits>
std::basic_ostream<CharT,Traits>& hr(std::basic_ostream<CharT, Traits>& os)
{
    auto [width, height] = terminal_size();
    os << std::setfill('-') << std::setw(width) << "\n" << std::setfill(' ') << std::setw(0);
    return os;
}