Which standard C++ library elements should I avoid?

• robin-hood-hashing

  23 1,465 0.0 C++

  Discontinued Fast & memory efficient hashtable based on robin hood hashing for C++11/14/17/20

Time complexity analysis doesn't necessarily reflect empirical performance. On this benchmark, std::map is twice as slow as clang's std::unordered_map on my laptop and unordered_map is seven times as slow as robin_hood, a single-header library. std::unordered_map is weirdly slow.

• HashTable

  2 0 5.1 C++

  simple hash table implementation

Then decided to build the simplest hashmap I could think of and test it against unordered_map https://github.com/brwhale/HashTable

• InfluxDB

  www.influxdata.com featured

  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.

  

• LMRTFY

  2 8 0.0 C++

  Let Me Run That For You: A C++20 Thread Pool Library

I am actually in the process of updating it to C++20 (here if you're curious), I'm going to consider it. I would like to not exclude clang users though, if at all possible. It wouldn't save me much code switching to jthread for the potential loss of users.

• C++ Format

  161 19,389 9.7 C++

  A modern formatting library

  

For output, fmtlib (partially included in C++20 too)

• udb2

  1 29 6.4 C++

  For details, see the blog post:

Time complexity analysis doesn't necessarily reflect empirical performance. On this benchmark, std::map is twice as slow as clang's std::unordered_map on my laptop and unordered_map is seven times as slow as robin_hood, a single-header library. std::unordered_map is weirdly slow.

• SaaSHub

  www.saashub.com featured

  SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives

  

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