abseil-cpp

Abseil Common Libraries (C++) (by abseil)

Abseil-cpp Alternatives

Similar projects and alternatives to abseil-cpp

NOTE: The number of mentions on this list indicates mentions on common posts plus user suggested alternatives. Hence, a higher number means a better abseil-cpp alternative or higher similarity.

abseil-cpp reviews and mentions

Posts with mentions or reviews of abseil-cpp. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2024-01-27.
  • Sane C++ Libraries
    7 projects | news.ycombinator.com | 27 Jan 2024
  • Open source collection of Google's C++ libraries
    1 project | news.ycombinator.com | 5 Jan 2024
  • Is Ada safer than Rust?
    2 projects | news.ycombinator.com | 2 Dec 2023
  • Appending to an std:string character-by-character: how does the capacity grow?
    2 projects | news.ycombinator.com | 26 Oct 2023
    Yeah, it's nice! And Abseil does it, IFF you use LLVM libc++.

    https://github.com/abseil/abseil-cpp/blob/master/absl/string...

    The standard adopted it as resize_and_overwrite. Which I think is a little clunky.

  • Shaving 40% Off Googleā€™s B-Tree Implementation with Go Generics
    3 projects | news.ycombinator.com | 19 Sep 2023
    This may be confusing to those familiar with Google's libraries. The baseline is the Go BTree, which I personally never heard of until just now, not the C++ absl::btree_set. The benchmarks aren't directly comparable, but the C++ version also comes with good microbenchmark coverage.

    https://github.com/google/btree

    https://github.com/abseil/abseil-cpp/blob/master/absl/contai...

  • Faster Sorting Beyond DeepMindā€™s AlphaDev
    1 project | news.ycombinator.com | 19 Sep 2023
  • ā€œOnceā€ one-time concurrent initialization with an integer
    2 projects | news.ycombinator.com | 1 Aug 2023
    An implementation of call_once that accommodates callbacks that throw: https://github.com/abseil/abseil-cpp/blob/master/absl/base/c...
  • [R] AlphaDev discovers faster sorting algorithms
    2 projects | /r/MachineLearning | 7 Jun 2023
    I wouldn't say it's that cryptic. It's just a few bitwise rotations/shifts/xor operations.
  • Deepmind Alphadev: Faster sorting algorithms discovered using deep RL
    3 projects | news.ycombinator.com | 7 Jun 2023
    You can see hashing optimizations as well https://www.deepmind.com/blog/alphadev-discovers-faster-sort..., https://github.com/abseil/abseil-cpp/commit/74eee2aff683cc7d...

    I was one of the members who reviewed expertly what has been done both in sorting and hashing. Overall it's more about assembly, finding missed compiler optimizations and balancing between correctness and distribution (in hashing in particular).

    It was not revolutionary in a sense it hasn't found completely new approaches but converged to something incomprehensible for humans but relatively good for performance which proves the point that optimal programs are very inhuman.

    Note that for instructions in sorting, removing them does not always lead to better performance, for example, instructions can run in parallel and the effect can be less profound. Benchmarks can lie and compiler could do something differently when recompiling the sort3 function which was changed. There was some evidence that the effect can come from the other side.

    For hashing it was even funnier, very small strings up to 64 bit already used 3 instructions like add some constant -> multiply 64x64 -> xor upper/lower. For bigger ones the question becomes more complicated, that's why 9-16 was a better spot and it simplified from 2 multiplications to just one and a rotation. Distribution on real workloads was good, it almost passed smhasher and we decided it was good enough to try out in prod. We did not rollback as you can see from abseil :)

    But even given all that, it was fascinating to watch how this system was searching and was able to find particular programs can be further simplified. Kudos to everyone involved, it's a great incremental change that can bring more results in the future.

  • Backward compatible implementations of newer standards constructs?
    5 projects | /r/cpp_questions | 24 May 2023
    Check out https://abseil.io. It offers absl::optional, which is a backport of std::optional.
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    www.influxdata.com | 23 Apr 2024
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Stats

Basic abseil-cpp repo stats
54
13,917
9.5
1 day ago

abseil/abseil-cpp is an open source project licensed under Apache License 2.0 which is an OSI approved license.

The primary programming language of abseil-cpp is C++.


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