yuga

module type ITEM =
sig
  type t
  val print : t -> unit
end

module type ORDERED = 
sig
  include ITEM

yuga

diff -Naru hsc2hs-ghc-7.4.1/utils/hsc2hs/Common.hs hsc2hs-ghc-7.4.1-fixed/utils/hsc2hs/Common.hs
--- hsc2hs-ghc-7.4.1/utils/hsc2hs/Common.hs     2012-02-02 03:10:32.000000000 +0900
+++ hsc2hs-ghc-7.4.1-fixed/utils/hsc2hs/Common.hs       2012-08-20 12:30:18.350942900 +0900
@@ -24,7 +24,11 @@

 splitName :: String -> (String, String)
 splitName name =
+#if defined(mingw32_HOST_OS)
+    case break (== '\\') name of
+#else

yuga

$ ghci
GHCi, version 7.4.1: http://www.haskell.org/ghc/  :? for help
Loading package ghc-prim ... linking ... done.
Loading package integer-gmp ... linking ... done.
Loading package base ... linking ... done.
Prelude> import Data.Binary.Strict.BitGet
Prelude Data.Binary.Strict.BitGet> import Data.ByteString
Prelude Data.Binary.Strict.BitGet Data.ByteString> let a = pack [0x80,0x00]
Loading package bytestring-0.9.2.1 ... linking ... done.
Prelude Data.Binary.Strict.BitGet Data.ByteString> let r = runBitGet a $ getBit

yuga

(* a solution to Exercise 9.10 of "Purely Functional Data Structures (PFDS)" *)

module type ITEM =
sig
  type t
  val print : t -> unit
end

module Int : (ITEM with type t = int) =
struct

yuga

(* a solution to Exercise 9.1 of "Purely Functional Data Structures (PFDS)" *)

module type ITEM =
sig
  type t
  val print : t -> unit
end

module Int : (ITEM with type t = int) =
struct

yuga

山本和彦 ?@kazu_yamamoto 教えて詳しい人：GHC では ByteString が pinned object なんですが、どうやって GC に回収されるんでしょうか？

詳しくはないけど、ざっと追いかけてみる。

GHC 7.4.1 rts/sm/Storage.c:743

// If we don't have a block of pinned objects yet, or the current

// one isn't large enough to hold the new object, allocate a new one.

yuga

Windowsでregex-pcre-builtinのビルドに失敗するときの対処法

Windowsにpandocをインストールするとかするとはまります。

依存関係: pandoc -> highlighting-kate -> regex-pcre-builtin

regex-pcre-builtin-0.94.4.1.8.31 用の手順です。

エラー事象

yuga

How to fix the failure of building regex-pcre-builtin on Windows

Q. What is the issue?

A. Let's do the clean installation of pandoc on Windows. Cabal tell us that something went wrong

>cabal install regex-pcre-builtin

Resolving dependencies...

yuga

{-# LANGUAGE FlexibleInstances #-}
{-# LANGUAGE OverloadedStrings #-}

module MinPrint (
    MinPrint, Doc,
    text, br, nest,
    execMinPrint, printDoc
) where

import qualified Data.ByteString.Char8  as S

yuga

Cabal-1.20.0.2 を使ってビルドしたcabal-installだとcabal testで標準出力が文字化けする。 Cabal-1.20.0.3 でも修正されていない。1.22系にしか入っていない模様。

• cabal test mangles encoding in log file
  

  • haskell/cabal#1895

• 修正のcommit内容

  • https://github.com/haskell/cabal/pull/2011/files