ghc

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xmonad could not find module `XMonad': broken package

Hi my Xmonad has been working perfectly until few days ago, then I think I installed something with Synaptic and then startedto complain about Xmonad.Config.Gnome[详细]

2023-01-22 02:32 分类：问答
profilng for Data.HashMap

I\'m using ghc 6.12.2 and the latest Data.HashMap 1.1.0 package, and while compiling with options +RTS -prof -auto-all[详细]

2023-01-20 05:16 分类：问答
Is it possible to use the GHC API to modify a program while compiling it?

I want to test the implementation a compiler optimization by piggybacking into the GHC compilation process and altering its Core representation. The idea would be to have something lik开发者_如何学Goe[详细]

2023-01-19 06:03 分类：问答
How do I get the OverloadedStrings language extension working?

I\'ve enabled overloaded strings, but I can\'t get them to work: $ cat overloadedstrings.hs {-# LANGUAGE OverloadedStrings #-}[详细]

2023-01-18 11:48 分类：问答
cross-compiling haskell code through ghc and mingw tools

I\'ve tried -fvia-C and the -pgms, but none of them manage to create an executable, splurting out lots of errors like Warning: retaining unknown function 开发者_如何学JAVA``L4\' in output from C compi[详细]

2023-01-12 08:45 分类：问答
Haskell Error: parse error on input `='

Specs GHC 6.12.1 Mac OS X 10.6.4 x64 MacBook Pro Problem I\'m having trouble using let syntax. The following code refuses to compile:[详细]

2023-01-10 14:05 分类：问答
Haskell: print TextEncoding

Haskell newbie here. $ ghc --version The Glorious Glasgow Haskell Compilation System, version 6.12.1 While trying to debug weird locale-related bug in third-party Haskell program, I\'m trying to p[详细]

2023-01-08 22:44 分类：问答
Installing a Haskell package from Hackage through Cabal gets stuck at dependency resolution

Here is the output from verbose mode.I know this used to work for me before but now this happens.I\'ve tried it with other packages and got the same result.[详细]

2023-01-07 23:46 分类：问答
Merging/union two classes into one in Haskell

I have two non-overlapping sets of types and want to make other set which is union of these two. Code sample:[详细]

2023-01-07 08:54 分类：问答
Memory footprint of Haskell data types

How can I find the actual amount of memory required to store a value of some data type in Haskell (mostly with GHC)? Is it possible to evaluate it at runtime (e.g. in GHCi) or i开发者_开发百科s it pos[详细]

2023-01-07 01:55 分类：问答