What is a neat way of breaking out of many for loops at once?

Question

Suppose I need to break out of three or four nested for loops at once at the occurence of some event inside the innermost loop. What is a neat way of doing that?

Answer 1

Just a wee bit better.

int i, j, k;
int flag1 = 0;
int flag2 = 0;

for (i = 0; i < 100 && !flag2; i++) {
    for (j = 0; j < 100 && !flag1; j++) {
        for (k = 0; k < 100; k++) {
            if (k == 50) {
                flag1 = 1;
                flag2 = 1;
                break;
            }
        }
    }
}

But if you really need to have those loops, then it makes sense explicitly declaring in each loop what conditions must hold for it to continue, for readability.