grow.odin

// Internal growinh procedure
_grow :: proc(q: ^$Q/Queue($T), min_capacity: uint = 0) -> bool {
	new_capacity := max(min_capacity, uint(8), uint(builtin.len(q.data))*2)
	n := uint(builtin.len(q.data))
	builtin.resize(&q.data, int(new_capacity)) or_return
	if q.offset + q.len > n {
		diff := n - q.offset
		copy(q.data[new_capacity-diff:], q.data[q.offset:][:diff])
		q.offset += new_capacity - n
	}
	return true
}