I'm not supporting Windows

#include "utils.h"

void clear_screen(void) {

#ifndef _WIN32

    system("clear");

#else

    system("cls");

#endif

}

// get random value from device

// set terminal to raw mode for registering keypresses without need to press Enter

void set_raw_terminal_configuration(void) {

#ifndef _WIN32 // setting terminal mode is only applicable for unix environments

    save_original_terminal_configuration();

    raw_terminal_configuration = original_terminal_configuration;

    // new_terminal_configuration.c_lflag &= ~ICANON & ~ECHO & ~ISIG; // disables canonical input, echo, signals (we want signals but good to know)

    raw_terminal_configuration.c_lflag &= ~ICANON & ~ECHO; // disables canonical input, echo

    set_terminal_configuration(&raw_terminal_configuration);

#endif

}

void set_original_terminal_configuration(void) {

#ifndef _WIN32 // setting terminal mode is only applicable for unix environments

    set_terminal_configuration(&original_terminal_configuration);

#endif

}

void set_terminal_configuration(const struct termios *terminal_configuration) {

#ifndef _WIN32

    tcsetattr(STDIN_FILENO, TCSANOW, terminal_configuration); // apply settings to unix terminal

#endif

}

void sleep_ms(const unsigned int ms) {

#define UTILS_H

// terminal manipulation includes - only for non-windows

#ifndef _WIN32

#include <unistd.h> // for STDIN_FILENO, used with termios

#include <termios.h> // for registering raw keypresses, as in menus

#else

#include <conio.h>

#endif

FILE *get_urandom(void);

void clear_screen(void);