Why is my method for finding all divisors for two numbers isn't working

So I made a while loop for finding all divisors for given numbers and it’s the following

int a,b;
int temp =0;
cout << "Enter the first number : ";
cin  >> a;
cout << "Enter the second number : ";
cin >> b;
int smallestNum = a<b?a:b;
while(true)
    {
        temp++;
        if(a%temp == 0 && b%temp == 0) cout << temp << ", ";
        if (temp == smallestNum) break;
    }
    cout << "are all the divisors for both numbers";

and it worked like expected but when i tried to do the same in a for loop it didn’t go as planned

int a,b;
int temp;
cout << "Enter the first number : ";
cin  >> a;
cout << "Enter the second number : ";
cin  >> b;
temp = a<b?a:b;
for (int i; i == temp; i++)
{
    if(a%i==0 && b%i==0) cout << i << ", ";
}
cout << "are all the divisors for both numbers";

I can’t even find the problem in my code to fix it, how can I fix it????

>Solution :

for loop will iterate as long as condition is true, your condition is i == temp which is (in general) false, you should change it to i != temp