void f() {
    int buf[10];
    int *limit = buf + 10;
    int *p = buf;
    while (p < limit)
        *p++ = 0;
}

void f2() {
    int buf[10];
    int *limit = buf + 11;
    int *p = buf;
    while (p < limit)
        *p++ = 0; //#1bug-5# 
}

void f3() {
    int buf[10];
    int *limit = buf;
    int *p = buf + 9;
    while (p >= limit)
        *p-- = 0;
}