linux_helper.h

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#ifndef OOKII_LINUX_HELPER_H_
#define OOKII_LINUX_HELPER_H_
 
#pragma once
 
#if !defined(OOKII_NO_PLATFORM_HEADERS) && (!defined(OOKII_CONSOLE_NOT_INLINE) || defined(OOKII_CONSOLE_DEFINITION))
 
#include <unistd.h>
#include <sys/ioctl.h>
 
#endif
 
#include <optional>
 
namespace ookii::details
{
 
    OOKII_PLATFORM_FUNC(std::optional<short> get_console_width())
#ifdef OOKII_PLATFORM_FUNC_HAS_BODY
    {
#if defined(TIOCGWINSZ)
 
        struct winsize ws;
 
        if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &ws) == 0)
        {
            return static_cast<short>(ws.ws_col);
        }
 
#endif
 
        return {};
    }
#endif
 
}
 
#endif