while(a < 17, b < 7) what is the maning of the coma?

Question

I have this code in C from a challenge:

int a = 0, b = 0;

while(a < 17, b < 7){
a++;
b++;
}

printf("%d %d \n", a, b);

My question is, what is the meaning of the , inside of the while? the coma also is equivalent to && operator? This is the first time that I see something like this, and I'm little confused about why to use the , instead of &&, what are the main difference?

Answer 1

https://stackoverflow.com/q/52550/9132046