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Questions tagged haskell

608 questions · page 5 of 13

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8
votes
1
answers

Rewrite rules not firing for rules matching multiple instance methods

haskell
asked 2012-03-21T19:11:52.007
14
votes
5
answers

List comprehension in Haskell, Python and Ruby

python ruby haskell list-comprehension
asked 2012-03-16T12:48:00.980
18
votes
2
answers

In Haskell, what is the scope of a where clause when dealing with guards?

haskell scope pattern-matching where-clause
asked 2012-03-15T14:03:59.497
8
votes
2
answers

Sequencing bind with pure functions

haskell
asked 2012-03-15T12:41:22.723
14
votes
2
answers

How can I test a higher-order function using QuickCheck?

haskell quickcheck
asked 2012-03-13T15:04:54.677
9
votes
3
answers

Haskell readLn no parse error

parsing haskell io
asked 2012-03-12T12:56:50.033
14
votes
1
answers

Variadic compose function?

haskell variadic function-composition pointfree
asked 2012-03-11T16:39:25.173
15
votes
2
answers

Poor performance parsing binary file in haskell

performance haskell binaryfiles
asked 2012-03-05T12:58:26.820
11
votes
1
answers

Deliberately defining infinite type in haskell

haskell types infinite
asked 2012-03-05T12:31:34.413
15
votes
7
answers

Is there a name for a function that takes a piece of data and a list of functions and applies each function to the result of the last one?

function haskell clojure functional-programming ocaml
asked 2012-03-03T11:37:44.023
11
votes
1
answers

Haskell memory management under IOS 5

ios haskell ios5 automatic-ref-counting
asked 2012-03-01T20:26:14.143
9
votes
1
answers

How can I change my data types without causing a recompile in Haskell?

haskell
asked 2012-02-25T19:09:30.510
17
votes
1
answers

ghci tab-completion in haskell-mode

haskell emacs ghci
asked 2012-02-24T13:46:41.297
15
votes
4
answers

Is indexing of Data.Vector.Unboxed.Mutable.MVector really this slow?

performance haskell vector profiling floating-point
asked 2012-02-23T08:44:52.170
23
votes
3
answers

Memory efficient strings in Haskell

string haskell
asked 2012-02-22T16:14:25.010
9
votes
2
answers

Pretty-print haskell source code with comments

haskell pretty-print
asked 2012-02-22T09:55:06.700
27
votes
9
answers

Extracting the exponent and mantissa of a Javascript Number

javascript math haskell ghc ieee-754
asked 2012-02-21T19:09:18.580
17
votes
3
answers

How do i use runhaskell with cabal-dev?

haskell cabal runhaskell
asked 2012-02-20T22:34:00.710
26
votes
6
answers

What prevents an efficient Haskell virtual machine (like JVM)?

haskell jvm vm-implementation
asked 2012-02-19T20:04:24.750
14
votes
3
answers

Haskell - Issue Compiling in GHC

windows haskell compilation ghc
asked 2012-02-16T22:32:11.973
19
votes
1
answers

Haskell existential quantification in detail

haskell ghc type-systems existential-type
asked 2012-02-13T11:45:17.893
40
votes
5
answers

Safe modelling of relational data in Haskell

haskell relational-database type-safety in-memory-database
asked 2012-02-10T20:11:23.310
9
votes
2
answers

A change in my library made it much slower. Profiling isn't helping me. What might be the reason for the slow-down?

haskell profiling ghc
asked 2012-01-31T10:17:09.840
25
votes
7
answers

replacement / substition with Haskell regex libraries

regex haskell
asked 2012-01-30T22:20:17.340
26
votes
1
answers

All matches of regex in Haskell

regex haskell
asked 2012-01-28T23:58:14.080
8
votes
1
answers

Are there any language extensions or language descendants of Haskell, that favor expressiveness, particularly in instance handling?

haskell typeclass overlapping-instances
asked 2012-01-26T02:56:07.587
10
votes
1
answers

Haskell: Getting a value out of an RVar in Data.Random

haskell random monads
asked 2012-01-25T20:01:51.140
19
votes
2
answers

export from module

haskell haskell-platform
asked 2012-01-24T08:25:47.200
15
votes
1
answers

Haskell How to Create a Word8?

string haskell bytestring
asked 2012-01-23T01:47:47.287
14
votes
4
answers

Any nice tools for untying knots in Haskell?

haskell circular-reference
asked 2012-01-20T17:03:15.273
18
votes
2
answers

Why does this Haskell code compile?

haskell
asked 2012-01-20T01:02:27.763
25
votes
5
answers

Can Haskell be used to write shell scripts?

linux shell unix haskell
asked 2012-01-19T12:09:39.950
12
votes
1
answers

haskell -- any way to roll your own group of LANGUAGE pragmas?

haskell ghc code-organization
asked 2012-01-19T08:55:20.090
20
votes
4
answers

Why is the type of this function (a -> a) -> a?

haskell types recursion anonymous y-combinator
asked 2012-01-18T23:20:32.640
9
votes
2
answers

Record syntax default value for accessor

haskell record default-value
asked 2012-01-18T19:27:50.187
17
votes
1
answers

Finger Tree (Data.Sequence) vs Rope (Data.Rope) (Haskell, or in general)

performance haskell data-structures sequence
asked 2012-01-17T15:46:27.847
11
votes
2
answers

What is the best way to convert a ByteString to an Int?

haskell bytestring
asked 2012-01-16T23:25:52.547
8
votes
1
answers

How to create JSON Rest API with Happstack? JSON body?

haskell happstack
asked 2012-01-14T22:16:57.433
10
votes
6
answers

Infinite list of infinite counters

haskell infinite
asked 2012-01-06T19:30:38.770
15
votes
1
answers

Which applicative functor is used for passing shared parameters?

haskell applicative
asked 2012-01-06T18:55:52.363
40
votes
4
answers

Can a compiler automatically detect pure functions without the type information about purity?

c gcc haskell compiler-construction d
asked 2012-01-06T16:23:12.630
9
votes
3
answers

Haskell non exhaustive patterns in function

haskell
asked 2012-01-05T20:55:42.847
11
votes
4
answers

Validations in Haskell

haskell
asked 2012-01-04T03:16:16.617
22
votes
2
answers

Which postgresql package should I use?

postgresql haskell
asked 2012-01-03T00:31:13.463
11
votes
2
answers

Why can't I write a general function to check if two lists are equal?

haskell
asked 2011-12-25T06:54:27.710
34
votes
4
answers

Advantages of strict fields in data types

haskell strictness
asked 2011-12-20T14:16:00.973
16
votes
3
answers

Extracting a Maybe value in IO

haskell io monads option-type
asked 2011-12-16T22:42:39.377
40
votes
8
answers

Maybe "kind-of" monad in Python

python haskell
asked 2011-12-14T15:34:24.337
13
votes
2
answers

Which is the preferred method for writing "guards"?

haskell
asked 2011-12-10T23:22:14.137
13
votes
6
answers

If I come from an imperative programming background, how do I wrap my head around the idea of no dynamic variables to keep track of things in Haskell?

variables haskell imperative
asked 2011-12-09T00:58:45.133
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