#heap #stash #collection #min-heap #heap-sort

addressable-pairing-heap

An addressable pairing heap implementation

2 unstable releases

Uses old Rust 2015

0.2.0 Feb 26, 2017
0.1.0 Feb 26, 2017

#23 in #pairing

26 downloads per month
Used in pheap

MIT/Apache

24KB
589 lines

MIT licensed Crates.io Version

Addressable Pairing-Heap

An addressable pairing heap implementation for Rust.

Allows to efficiently store elements associated with a key and access them via handles. Handles to elements make it possible to query and edit elements stored in the PairingHeap.

Documentation: link
crates.io: link

Benchmarks show that the current implementation suffers from performance issues that have yet to be fixed:

Binary Heap

test bench::binary_heap_clone        ... bench:      27,409 ns/iter (+/- 1,958)
test bench::binary_heap_pop          ... bench:   3,227,855 ns/iter (+/- 35,525)
test bench::binary_heap_pop_bigpod   ... bench:  17,386,429 ns/iter (+/- 85,175)
test bench::binary_heap_push         ... bench:   1,522,285 ns/iter (+/- 39,222)
test bench::binary_heap_push_bigpod  ... bench:  10,600,908 ns/iter (+/- 226,227)

Pairing Heap

test bench::pairing_heap_clone       ... bench:   1,713,716 ns/iter (+/- 43,337)
test bench::pairing_heap_pop         ... bench:  11,255,949 ns/iter (+/- 209,302)
test bench::pairing_heap_pop_bigpod  ... bench:  26,683,916 ns/iter (+/- 136,507)
test bench::pairing_heap_push        ... bench:   2,644,503 ns/iter (+/- 34,863)
test bench::pairing_heap_push_bigpod ... bench:  10,997,608 ns/iter (+/- 161,914)

Dependencies

~430KB