continuous loop

[nfnicolas]

tell me where the error ?? It is necessary to cause the R-Y-G-Y-R, etc.

  void Traffic_Light::processing()
{
	
	do
	{
		
		
		switch (current_color)
		{
		case RED:
			screen.displayMessage("Red light");
			Sleep(2000);
			current_color = YELLOW;
			previos_color = RED;
		case YELLOW:
			
			screen.displayMessage("Yellow light");
			Sleep(4000);
			if ( previos_color== RED)
			{
				current_color = GREEN; cout << "HERE GREEN\n";
			}
			else
			{
				current_color = RED; cout << "here RED\n";
			}


		case GREEN:
			
			screen.displayMessage("Green light");
			Sleep(3000);
			current_color = YELLOW;
			previos_color = GREEN;
			break;
		}
		if (previos_color == GREEN)
		{
			current_color = YELLOW;
			cout << "next yellow\n";
		}
		
		
	} while (true);
}

[Golden Lizard]

You never break the loop, just the switch case. Use another boolean variable to keep track of it, then break the loop outside of switch. Also, all switch cases need to end in break.

[fantomasAlbania]

What type of varibles are the colors ?
I think you should declare them as an enum type, you have not declared them.