Returns a new Cord representing the subrange [pos, pos + new_size) of] *this.
If pos >= size(), the result is empty(). If (pos + new_size) >= size(), the result is the subrange [pos, size()).]
A Cord holding the requested subrange.
| Name | Description |
|---|---|
| pos | The starting byte offset of the subrange. |
| new_size | The number of bytes in the subrange. |