public void push(ArrayQueue <T> other) // chk!!
{
if (other.empty())
{
return;
}
int newSize = capacity;
while (newSize - num < other.size())
{
newSize = newSize * 2;
}
if (newSize != this.capacity)
{
// expand array queue.
ArrayQueue <T> temp = new ArrayQueue <T>(newSize);
temp.start = 0;
//
for (int i = 0; i < this.size(); ++i)
{
temp.set(i, this.get(i));
}
int iend = other.num;
for (int i = 0; i < iend; ++i)
{
temp.set(i + this.num, other.get(i));
}
temp.num = this.num + other.num;
this.arr = temp.arr;
this.num = temp.num;
this.start = temp.start;
this.capacity = temp.capacity;
}
else
{
for (int i = 0; i < other.size(); ++i)
{
this.push((other.get(i)));
}
}
}
private void expand()
{
// expand array queue.
ArrayQueue <T> temp = new ArrayQueue <T>(capacity * 2);
//
for (int i = 0; i < capacity; ++i)
{
temp.set(i, arr[(start + i) & (capacity - 1)]);
}
temp.start = 0;
temp.num = size();
this.num = temp.num;
this.arr = temp.arr;
this.start = temp.start;
this.capacity = temp.capacity;
}