Jumps out of the nearest enclosing loop or switch statement.

// print the numbers to a file, one per line
for (const int num : num_list) {
    errno = 0;
    fprintf(file, "%d\\n", num);
    if (errno == ENOSPC) {
        fprintf(stderr, "no space left on device; output will be truncated\\n");
        break;
    }
}