C++ Hash

Open-source C++ projects categorized as Hash
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Topics: Hashmap C++ CPP hash-tables Hashing
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Top 16 C++ Hash Projects

  • OpenHashTab

    📝 File hashing and checking shell extension

    • Project mention: cdrom uploads questions | /r/ArchiveDotOrg | 2023-05-09

    You should also make some hashes of the files after you dump them, and paste them into a text file, I use OpenHashTab: https://github.com/namazso/OpenHashTab

  • parallel-hashmap

    A family of header-only, very fast and memory-friendly hashmap and btree containers.

    • Project mention: The One Billion Row Challenge in CUDA: from 17 minutes to 17 seconds | news.ycombinator.com | 2024-04-13

    Standard library maps/unordered_maps are themselves notoriously slow anyway. A sparse_hash_map from abseil or parallel-hashmaps[1] would be better.

    [1] https://github.com/greg7mdp/parallel-hashmap

  • InfluxDB

    Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.

    InfluxDB logo

  • meow_hash

    Official version of the Meow hash, an extremely fast level 1 hash

  • sparsepp

    A fast, memory efficient hash map for C++

  • unordered_dense

    A fast & densely stored hashmap and hashset based on robin-hood backward shift deletion

    • Project mention: unordered_dense: A Fast & Densely Stored Hashmap And Hashset Based On Robin-Hood Backward Shift Deletion | /r/programming | 2023-07-11

  • pHash

    pHash - the open source perceptual hash library

  • fhash

    fHash - an open source files hash calculator for Windows and macOS

    • Project mention: For those who've recently switched from Windows to Mac, what's the one app you miss the most? | /r/macapps | 2023-05-28

    Or fHash https://github.com/sunjw/fhash (free).

  • WorkOS

    The modern identity platform for B2B SaaS. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.

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  • DISCoHAsH

    :rocket: DISCoHAsH - Simple, fast, quality hash in 120 lines. 10GB/s serial (depending on hardware). Also in NodeJS

    • Project mention: Show HN: Discohash – simply, quality, fast hash | news.ycombinator.com | 2023-06-23

    // https://github.com/dosyago/discohash

  • eternal

    A C++14 compile-time/constexpr map and hash map with minimal binary footprint (by mapbox)

  • digestpp

    C++11 header-only message digest library

  • pthash

    Fast and compact minimal perfect hash functions in C++.

    • Project mention: Fast and compact minimal perfect hash functions in C++ | news.ycombinator.com | 2024-02-20

  • gtl

    Greg's Template Library of useful classes.

    • Project mention: Inside boost::concurrent_flat_map | /r/cpp | 2023-07-07

    gtl library author here. Very nice writeup! Reading it made me think, and I believe I know why gtl::parallel_flat_hash_map performs comparatively worse for high-skew scenarios (just pushed a fix in gtl).

  • fph-table

    Flash Perfect Hash Table: an implementation of a dynamic perfect hash table, extremely fast for lookup

  • py-cryptonight

    Python Cryptonight binding / extension. Monero hash function, proof-of-work, cn_slow_hash()

  • qc-hash

    Extremely fast unordered map and set library for C++20

  • gperf

    mirror of git.savannah.gnu.org/gperf.git with more features. gitlab has the issues

  • SaaSHub

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NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020). The latest post mention was on 2024-04-13.

C++ Hash related posts

Index

What are some of the best open-source Hash projects in C++? This list will help you:

Project Stars
1 OpenHashTab 2,836
2 parallel-hashmap 2,307
3 meow_hash 1,666
4 sparsepp 1,227
5 unordered_dense 722
6 pHash 508
7 fhash 306
8 DISCoHAsH 216
9 eternal 189
10 digestpp 186
11 pthash 169
12 gtl 89
13 fph-table 37
14 py-cryptonight 21
15 qc-hash 10
16 gperf 2

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