Daniel Wagner

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Daniel Wagner has asked 24 questions and find answers to 1073 problems.

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Daniel Wagner questions

Can I compute a type's cardinality generically?
Why is a namespace-qualified name available as a candidate?
Why isn't this a dangling pointer?
segfault when trying to keep main loop busy
References to $RANDOM in subshells all returning identical values
adding ghci's inferred type signature causes an error
typeclass challenge: having both variadic arguments and results
changing how Setup.hs is built
How can I use contradictory evidence?
Why does this function seem to hide its embedded exception?

Daniel Wagner answers

Can I discharge a constraint, if I know the class is solvable for all types of a kind?
How to specify a type family with multiparameter injectivity?
Why (-2) is different from (\x -> x - 2) in Haskell? [duplicate]
Cache a result for a certain amount of time and return a cached value [closed]
Adding a single variable to the function signature makes code significantly slower
Natural map derivation algorithm
Mapping an Either list to integers
How can I use generic type annotations to describe a recursive data type?
Haskell function parameter force evaluation
Haskell error: cannot derive well-kinded instance / kind-mismatch