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package o-clock

Type-safe time library. See README.md for details.
package oblivious-transfer

An implementation of the Oblivious Transfer protocol in Haskell Please see the README on GitHub at https://github.com/adjoint-io/oblivious-transfer#readme
package odbc

Haskell binding to the ODBC API, aimed at SQL Server driver Haskell binding to the ODBC API. This has been tested against the Microsoft SQL Server ODBC drivers. Its test suite runs on OS X, Windows and Linux.
package oeis

Interface to the Online Encyclopedia of Integer Sequences (OEIS) Interface to the Online Encyclopedia of Integer Sequences (OEIS).
package oeis2

Interface for Online Encyclopedia of Integer Sequences (OEIS). Release notes are here https://github.com/23prime/oeis2/releases
package ollama-haskell

Haskell client for ollama. Ollama client for Haskell
package om-fork

Concurrency utilities. Actor pattern and some limited structured concurrency tools

memoization for IO actions and functions Package provides single polymorphic function once, that allows you to memoize IO actions and functions, evaluating them at most once.

>>> let mkStamp = (putStrLn "stamping" >> writeFile "/tmp/stamp" "") :: IO ()

>>> -- onceStamp :: IO ()

>>> onceStamp <- once mkStamp

>>> -- onceStamp actually evaluates mkStamp it wraps first time.

>>> onceStamp
stamping

>>> -- but second time result `()' is memoized, no action is performed.

>>> onceStamp

>>> -- we can memoize functions too

>>> foo <- once $ \x -> print "foo" >> print (x :: Int)

>>> -- action will be performed once for every distinct argument

>>> foo 10
foo
10

>>> foo 10
10

>>> foo 4
foo
4

package oops

Combinators for handling errors of many types in a composable way Combinators for handling errors of many types in a composable way.
package opaleye

An SQL-generating DSL targeting PostgreSQL An SQL-generating DSL targeting PostgreSQL. Allows Postgres queries to be written within Haskell in a typesafe and composable fashion.

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