A method used behind the scenes to provide $O(1)$-amortized time for most operations.
Runs in $O(n)$ time worst case; restructures the rdeque so that the two internal rstacks
are roughly the same length.
Usage
"fixd"(d, ...)
Arguments
d
The rdeque to fix.
...
additional arguments to be passed to or from methods.
Value
a fixed deque.
References
Okasaki, Chris. Purely Functional Data Structures. Cambridge University Press, 1999.