function2 VS Hashmaps

function2

• Callbacks in embedded | heapless environment
  7 projects | /r/cpp | 31 Mar 2023

  Fixed size function wrappers are not only limited and also a waste of space. Use a configurable function wrapper like fu2 with a stack allocator and set small object optimizer capacity to 0.

• Scriptable Headless Player Bots and independent ECS in a Custom UE C++ Server for MMO(RPG)s.
  5 projects | /r/unrealengine | 10 Oct 2022
• A custom C++ server for the Unreal Engine 5, optimized for MMO(RPG)s.
  8 projects | /r/unrealengine | 2 Jun 2022
• A simple std::function alternative that never allocates
  3 projects | /r/cpp | 17 Oct 2021

  std::function wasn't cutting it for me, but I ended up going with fu2::function. It comes with a lot of features (almost too many), but the header size and compile times are comparable to , and it fit my needs pretty well.

• Idle: an asynchronous and hot-reloadable C++ dynamic component framework
  4 projects | /r/cpp | 15 Sep 2021

  Thank you, function2 is also used heavily in Idle as a type-erasure backend for continuable that is the primary asynchronous task abstraction.

• Should std::function's move assignment operation be noexcept?
  1 project | /r/cpp | 26 Mar 2021
• Orthodox C++
  2 projects | news.ycombinator.com | 27 Dec 2020

  You can write your own std::function, too, nor is it the only STL type that can take a capturing lambda (std::packaged_task for example).

  A capturing lambda is just a class with an operator(). It's complicated to do what std::function does, but fully possible.

  In fact, custom std::function replacements have better lambda support than std::function itself. Such as unique_function in https://github.com/Naios/function2 which can handle non-copyable lambdas.

Hashmaps

We haven't tracked posts mentioning Hashmaps yet.
Tracking mentions began in Dec 2020.