managed VS contravariant

Compare managed vs contravariant and see what are their differences.

managed

A monad for managed values (by Gabriella439)
Control
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contravariant

Haskell 98 contravariant functors (by ekmett)
Control Contravariant
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managed contravariant
- 1
49 72
- -
0.0 0.0
about 1 year ago about 2 years ago
Haskell Haskell
BSD 3-clause "New" or "Revised" License BSD 3-clause "New" or "Revised" License
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
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managed

Posts with mentions or reviews of managed. We have used some of these posts to build our list of alternatives and similar projects.

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

contravariant

Posts with mentions or reviews of contravariant. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2021-10-21.
  • Co-Applicative programming style
    2 projects | /r/haskell | 21 Oct 2021
    The operator also pops up in George Wilson's 2018 talk, Contravariant Functors: the Other Side of the Coin, along with (>*) and (*<) operators to help things along. Shortly after its publication, Issue #57 for contravariant was raised, suggesting not only (>*<) but the other operators from George's talk.

What are some alternatives?

When comparing managed and contravariant you can also consider the following projects:

distributed-fork - A distributed data processing framework in Haskell.

control-monad-free - Free monads and monad transformers

unliftio - The MonadUnliftIO typeclass for unlifting monads to IO

hdph - Haskell distributed parallel Haskell

parallel - a library for parallel programming

effect-monad - Provides 'graded monads' and 'parameterised monads' to Haskell, enabling fine-grained reasoning about effects.

freer-simple - A friendly effect system for Haskell

streamproc - Haskell library providing a continuation-based stream processor arrow

motor - Type-safe effectful state machines in Haskell

recursion-schemes - Generalized bananas, lenses and barbed wire

monad-validate - (NOTE: REPOSITORY MOVED TO NEW OWNER: https://github.com/lexi-lambda/monad-validate) A Haskell monad transformer library for data validation

can-i-haz - Generic implementation of the Has pattern for MonadReader/MonadState and CoHas for MonadError

managed vs distributed-fork contravariant vs control-monad-free managed vs unliftio contravariant vs hdph managed vs parallel contravariant vs effect-monad managed vs freer-simple contravariant vs streamproc managed vs motor contravariant vs recursion-schemes managed vs monad-validate contravariant vs can-i-haz