ABS
d1 = ABS(px2 - px1);
d2 = ABS(py2 - py1);
if (ABS(p1->altitude - p2->altitude) <= dist &&
ABS(p1->xpos - p2->xpos) <= dist &&
ABS(p1->ypos - p2->ypos) <= dist)
move_judge = ABS(mvx - dx) + ABS(mvy - dy);
cur_judge = ABS(mvx - dx) + ABS(mvy - dy);
if (ABS(My_pos.x - rob->x) > ABS(My_pos.y - rob->y)) {
return MAX(ABS(ABS(x1) - ABS(x2)), ABS(ABS(y1) - ABS(y2)));
dx = ABS(long, (d->nominal_size.width - width));
dy = ABS(long, (d->nominal_size.height - height));
ABS(reqout - out) <= e) {
e = ABS(reqout - out);
if (ABS(diff) < ABS(val)) {
error = ABS(error);
if (ABS(f_cur - freq) < best_error) {
best_error = ABS(f_cur - freq);
dx = ABS(x1 - x0);
dy = ABS(y1 - y0);