peek_back-set-.rdeque: Assign to/modify the back of an rdeque

In rstackdeque: Persistent Fast Amortized Stack and Queue Data Structures

Description

Allows modification access to the back of a deque.

Usage

## S3 replacement method for class 'rdeque'
peek_back(d, ...) <- value

Arguments

d	rdeque to modify the back element of.
...	additional arguments to be passed to or from methods.
value	value to assign to the back data element.

Details

Runs in O(1) worst case time. Throws an error if the deque is empty.

Value

modified rdeque.

See Also

peek_back.rdeque for accessing the back element.

Examples

d <- rdeque()
d <- insert_front(d, data.frame(a = 1, b = 1))
d <- insert_front(d, data.frame(a = 1, b = 1))

peek_back(d)$a <- 100
print(d)

peek_back(d) <- data.frame(a = 100, b = 100)

rstackdeque documentation built on May 2, 2019, 4:15 a.m.