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Trouble with a counting if statement

rfitz123 (16)
I put together a little code to test colors and I'm not really sure whats wrong. I had the system output the value for the a variable as well but I'm still not having any success, the variable continues to stay at 2, and output the color i associated with 2. Any ideas? Thanks!

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 #include <iostream>
#include <chrono>
#include <thread>
#include <Windows.h>

using namespace std;
using namespace std::this_thread;
using namespace std::chrono;

int a = 1;

int main()
{
	
	
	while (true)
	{
		if (a != 7)
		{
			a += a;

		}
		else
		{
			a = a - 6;
		}




		HANDLE h = GetStdHandle(STD_OUTPUT_HANDLE);

		switch (a)
		{
		case 1:
			SetConsoleTextAttribute(h, FOREGROUND_RED);
			break;
		case 2:
			SetConsoleTextAttribute(h, FOREGROUND_RED | FOREGROUND_RED | FOREGROUND_GREEN);
			break;
		case 3:
			SetConsoleTextAttribute(h, FOREGROUND_RED | FOREGROUND_GREEN);
			break;
		case 4:
			SetConsoleTextAttribute(h, FOREGROUND_GREEN);
			break;
		case 5:
			SetConsoleTextAttribute(h, FOREGROUND_BLUE);
			break;
		case 6:
			SetConsoleTextAttribute(h, FOREGROUND_BLUE | FOREGROUND_BLUE | FOREGROUND_RED);
			break;
		case 7:
			SetConsoleTextAttribute(h, FOREGROUND_BLUE | FOREGROUND_RED);
			break;

		}


		while (true)
		{
			cout << "rainbow" << endl;
			cout << a << endl;
		}
	}
		
	
	
	return(0);


	
}
gunnerfunner (2127)
Try something on these lines:
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#include <iostream>
#include <Windows.h>
#include <chrono>
#include <thread>

int main()
{
    using namespace std::chrono_literals;
    
    HANDLE h = GetStdHandle(STD_OUTPUT_HANDLE);
    SetConsoleTextAttribute(h, FOREGROUND_RED | FOREGROUND_RED | FOREGROUND_GREEN);
    std::cout << "Rainbow \n";
    
     auto start = std::chrono::high_resolution_clock::now();
    std::this_thread::sleep_for(2s);
    auto end = std::chrono::high_resolution_clock::now();
    
    SetConsoleTextAttribute(h, FOREGROUND_BLUE | FOREGROUND_RED);
    std::cout << "Rainbow \n";
     auto start1 = std::chrono::high_resolution_clock::now();
    std::this_thread::sleep_for(2s);
    auto end1 = std::chrono::high_resolution_clock::now();
}

ps: sorry I could have cleaned this up a bit more but gotta run!
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