binary-ieee754 (empty) → 0.1.0.0

raw patch · 6 files changed

+212/−0 lines, 6 filesdep +arraydep +basedep +binarysetup-changed

Dependencies added: array, base, binary

Files

ChangeLog.md +5/−0
Data/Binary/IEEE754.hs +138/−0
LICENSE +30/−0
README.md +7/−0
Setup.hs +2/−0
binary-ieee754.cabal +30/−0

+ ChangeLog.md view

@@ -0,0 +1,5 @@+# Revision history for binary-ieee754++## 0.1.0.0  -- YYYY-mm-dd++* First version. Released on an unsuspecting world.

+ Data/Binary/IEEE754.hs view

@@ -0,0 +1,138 @@+{-# LANGUAGE FlexibleContexts #-}+{-# LANGUAGE CPP #-}+{-# LANGUAGE Trustworthy #-}++-- | This module backports ieee754 double/float combinators from binary 0.8.4 to older+-- version, and simply re-export these combinators for binary >= 0.8.4. You can safely+-- import this module alongside "Data.Binary.Get" and "Data.Binary.Put".+--+--   Implements casting via a 1-elemnt STUArray, as described in+--   <http://stackoverflow.com/a/7002812/263061>.+--+module Data.Binary.IEEE754+  ( -- * Double/Float Word cast+    floatToWord+  , wordToFloat+  , doubleToWord+  , wordToDouble+    -- * Double/Floats Get+  , getFloatbe+  , getFloatle+  , getFloathost+  , getDoublebe+  , getDoublele+  , getDoublehost+    -- * Double/Floats Put+  , putFloatbe+  , putFloatle+  , putFloathost+  , putDoublebe+  , putDoublele+  , putDoublehost+  ) where++import Data.Word (Word32, Word64)+import Data.Array.ST (newArray, readArray, MArray, STUArray)+import Data.Array.Unsafe (castSTUArray)+import GHC.ST (runST, ST)+import Data.Binary.Get+import Data.Binary.Put+import Control.Applicative ((<$>))++------------------------------------------------------------------------+-- Double/Float Word cast++-- | Reinterpret-casts a `Float` to a `Word32`.+floatToWord :: Float -> Word32+floatToWord x = runST (cast x)+{-# INLINE floatToWord #-}++-- | Reinterpret-casts a `Word32` to a `Float`.+wordToFloat :: Word32 -> Float+wordToFloat x = runST (cast x)+{-# INLINE wordToFloat #-}++-- | Reinterpret-casts a `Double` to a `Word64`.+doubleToWord :: Double -> Word64+doubleToWord x = runST (cast x)+{-# INLINE doubleToWord #-}++-- | Reinterpret-casts a `Word64` to a `Double`.+wordToDouble :: Word64 -> Double+wordToDouble x = runST (cast x)+{-# INLINE wordToDouble #-}++cast :: (MArray (STUArray s) a (ST s),+         MArray (STUArray s) b (ST s)) => a -> ST s b+cast x = newArray (0 :: Int, 0) x >>= castSTUArray >>= flip readArray 0+{-# INLINE cast #-}++#if !(MIN_VERSION_binary(0,8,4))++------------------------------------------------------------------------+-- Double/Float Get++-- | Read a 'Float' in big endian IEEE-754 format.+getFloatbe :: Get Float+getFloatbe = wordToFloat <$> getWord32be+{-# INLINE getFloatbe #-}++-- | Read a 'Float' in little endian IEEE-754 format.+getFloatle :: Get Float+getFloatle = wordToFloat <$> getWord32le+{-# INLINE getFloatle #-}++-- | Read a 'Float' in IEEE-754 format and host endian.+getFloathost :: Get Float+getFloathost = wordToFloat <$> getWord32host+{-# INLINE getFloathost #-}++-- | Read a 'Double' in big endian IEEE-754 format.+getDoublebe :: Get Double+getDoublebe = wordToDouble <$> getWord64be+{-# INLINE getDoublebe #-}++-- | Read a 'Double' in little endian IEEE-754 format.+getDoublele :: Get Double+getDoublele = wordToDouble <$> getWord64le+{-# INLINE getDoublele #-}++-- | Read a 'Double' in IEEE-754 format and host endian.+getDoublehost :: Get Double+getDoublehost = wordToDouble <$> getWord64host+{-# INLINE getDoublehost #-}++------------------------------------------------------------------------+-- Double/Floats Put++-- | Write a 'Float' in big endian IEEE-754 format.+putFloatbe :: Float -> Put+putFloatbe = putWord32be . floatToWord+{-# INLINE putFloatbe #-}++-- | Write a 'Float' in little endian IEEE-754 format.+putFloatle :: Float -> Put+putFloatle = putWord32le . floatToWord+{-# INLINE putFloatle #-}++-- | Write a 'Float' in native in IEEE-754 format and host endian.+putFloathost :: Float -> Put+putFloathost = putWord32host . floatToWord+{-# INLINE putFloathost #-}++-- | Write a 'Double' in big endian IEEE-754 format.+putDoublebe :: Double -> Put+putDoublebe = putWord64be . doubleToWord+{-# INLINE putDoublebe #-}++-- | Write a 'Double' in little endian IEEE-754 format.+putDoublele :: Double -> Put+putDoublele = putWord64le . doubleToWord+{-# INLINE putDoublele #-}++-- | Write a 'Double' in native in IEEE-754 format and host endian.+putDoublehost :: Double -> Put+putDoublehost = putWord64host . doubleToWord+{-# INLINE putDoublehost #-}++#endif

+ LICENSE view

@@ -0,0 +1,30 @@+Copyright (c) 2016, Winterland++All rights reserved.++Redistribution and use in source and binary forms, with or without+modification, are permitted provided that the following conditions are met:++    * Redistributions of source code must retain the above copyright+      notice, this list of conditions and the following disclaimer.++    * Redistributions in binary form must reproduce the above+      copyright notice, this list of conditions and the following+      disclaimer in the documentation and/or other materials provided+      with the distribution.++    * Neither the name of Winterland nor the names of other+      contributors may be used to endorse or promote products derived+      from this software without specific prior written permission.++THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

+ README.md view

@@ -0,0 +1,7 @@+binary-ieee754+==============++[![Hackage](https://img.shields.io/hackage/v/binary-ieee754.svg?style=flat)](http://hackage.haskell.org/package/binary-ieee754)+[![Build Status](https://travis-ci.org/winterland1989/binary-ieee754.svg)](https://travis-ci.org/winterland1989/binary-ieee754)++This package backports ieee754 double/float combinators from [binary](http://hackage.haskell.org/package/binary) 0.8.4 to older version, and simply re-export these combinators for binary >= 0.8.4. It's meant for packages which need fast double/float combinators and old binary compatibility.

+ Setup.hs view

@@ -0,0 +1,2 @@+import Distribution.Simple+main = defaultMain

+ binary-ieee754.cabal view

@@ -0,0 +1,30 @@+name:                binary-ieee754+version:             0.1.0.0+synopsis:            Backport ieee754 float double combinators to older binary+description:         Backport ieee754 float double combinators to older binary+homepage:            https://github.com/winterland1989/binary-ieee754+bug-reports:         https://github.com/winterland1989/binary-ieee754/issues+license:             BSD3+license-file:        LICENSE+author:              Winterland+maintainer:          winterland1989@gmail.com+-- copyright:           +category:            Data+build-type:          Simple+extra-source-files:  ChangeLog.md, README.md+cabal-version:       >=1.10++source-repository head+  type:     git+  location: git://github.com/winterland1989/binary-ieee754.git++library+  exposed-modules:     Data.Binary.IEEE754+  -- other-modules:       +  -- other-extensions:    +  build-depends:        base >=4.5 && <5.0+                    ,   array+                    ,   binary >= 0.3++  -- hs-source-dirs:      +  default-language:    Haskell2010