haskell tag

27 questions


2 answers
98 views
0
Cannot define intermediate operator bb

I'm sorry to bother you so often.I have a question about Haskell. by & expressionTrue&&_=_False &_= FalseThe problem is to express with a conditional expression.(bb)::Bool->a->bx...

2 years ago

2 answers
85 views
0
How to Choose a Haskell Single Test

I wanted to write a single test on Haksell, so I was looking into it ·Hunit·QuickCheck·test-framework (including Hunit and QuickCheck?)·HspecI found several and didn't know which one to use.Are these ...

2 years ago

1 answers
91 views
0
Variable not in scope in Haskell

I started Haskell today.I finished installing from https://www.haskell.org/platform/, and saved the sample code as file.hs.If you type ghci file.hs on the GHCi screen, [1 of 1] Compiling Main (file.hs...

2 years ago

1 answers
75 views
0
Handling of Haskell IO Actions

I'm a beginner at Haskell.I have a question.parseDnsMessage::BG.BitGet DnsMessagerecQuery::BS.ByteString->String->IOBS.ByteStringresolveName::[Word8]->[Word8]->BS.ByteString->Stringreso...

2 years ago

1 answers
73 views
0
I'm trying to load a function, but I'm in trouble because I can't.

baby.hs:2:35:error:parse error on input'\' |2 | \cocoatextscaling0\cocoaplatform0 | ^Failed, no modules loaded.I can't write a sentence like thisCould you please let me know?

2 years ago

1 answers
89 views
0
About MonadTransControl and MonadBaseControl for monad-control

There are MonadTransControl and MonadBaseControl in the monad-control package, but what is the correct way to use them?http://maoe.hatenadiary.jp/entry/20111207/1323185162 forSimply put, the MonadTran...

2 years ago

1 answers
97 views
0
About Haskell's wai

I wanted to create an api server using wai and warp in Haskell.I want to change the request to ByteString and pass it to the function, but it doesn't work.Thank you for your cooperationapp::Applicatio...

2 years ago
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