#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <time.h>

#include<windows.h>

#include <atomic>
#include <thread>

int cnt = 0;
std::atomic<int> acnt = 0;

void testint() {
	int t = clock();
	while(1) {
		cnt++;
		if(cnt == 0) {
			printf("test int %d ms\n", clock() - t);
			break;
		}
	}
}

void testatomic() {
	int t = clock();
	while (1) {
		acnt++;
		if (acnt == 0) {
			printf("test atomic %d ms\n", clock() - t);
			break;
		}
	}
}

void main() {
	testint();
	testatomic();
	printf("multithread\n");
	std::thread t1(testatomic);
	std::thread t2(testatomic);
	std::thread t3(testatomic);
	t1.join();
	t2.join();
	t3.join();
}