altfloat (empty) → 0.2
raw patch · 18 files changed
+4847/−0 lines, 18 filesdep +basedep +ghc-primdep +integersetup-changed
Dependencies added: base, ghc-prim, integer
Files
- Data/Floating.hs +41/−0
- Data/Floating/CMath.hs +197/−0
- Data/Floating/Classes.hs +98/−0
- Data/Floating/Double.hs +162/−0
- Data/Floating/Instances.hs +21/−0
- Data/Floating/Prelude.hs +25/−0
- Data/Floating/Types.hs +88/−0
- Data/Poset.hs +46/−0
- Data/Poset/Instances.hs +55/−0
- Data/Poset/Internal.hs +131/−0
- LICENSE +23/−0
- Setup.lhs +4/−0
- altfloat.buildinfo.in +1/−0
- altfloat.cabal +64/−0
- cfloat.c +61/−0
- cfloat.h +9/−0
- configure +3797/−0
- configure.ac +24/−0
+ Data/Floating.hs view
@@ -0,0 +1,41 @@+{-+ - Copyright (C) 2009 Nick Bowler.+ -+ - License BSD2: 2-clause BSD license. See LICENSE for full terms.+ - This is free software: you are free to change and redistribute it.+ - There is NO WARRANTY, to the extent permitted by law.+ -}++-- | Top level module for alternative floating point support.+module Data.Floating (+ Double, Float,+ module Data.Floating.Classes,+ module Data.Floating,+ toFloating+) where++import Prelude hiding (RealFloat(..), Double, Float)+import Data.Floating.Classes+import Data.Floating.Instances+import Data.Floating.Double+import Data.Floating.Types++import Control.Monad++isInfinite :: RealFloat a => a -> Bool+isInfinite = (== FPInfinite) . classify++isNaN :: RealFloat a => a -> Bool+isNaN = (== FPNaN) . classify++isNormal :: RealFloat a => a -> Bool+isNormal = (== FPNormal) . classify++isSubNormal :: RealFloat a => a -> Bool+isSubNormal = (== FPSubNormal) . classify++isFinite :: RealFloat a => a -> Bool+isFinite = not . liftM2 (||) isInfinite isNaN++isNegativeZero :: RealFloat a => a -> Bool+isNegativeZero = liftM2 (&&) ((== FPZero) . classify) ((== (-1)) . signum)
+ Data/Floating/CMath.hs view
@@ -0,0 +1,197 @@+{-+ - Copyright (C) 2009 Nick Bowler.+ -+ - License BSD2: 2-clause BSD license. See LICENSE for full terms.+ - This is free software: you are free to change and redistribute it.+ - There is NO WARRANTY, to the extent permitted by law.+ -}++-- | Bindings to the standard C math library.+{-# LANGUAGE ForeignFunctionInterface #-}+{-# INCLUDE <math.h> #-}+module Data.Floating.CMath (+ -- * Trigonometric functions+ c_acos, c_asin, c_atan, c_atan2, c_cos, c_sin, c_tan,++ -- * Hyperbolic functions+ c_acosh, c_asinh, c_atanh, c_cosh, c_sinh, c_tanh,++ -- * Exponential functions+ c_exp, c_exp2, c_expm1, c_frexp, c_ilogb, c_ldexp, c_log, c_log10,+ c_log1p, c_log2, c_logb, c_modf, c_scalbn, c_scalbln,++ -- * Power and absolute value functions+ c_cbrt, c_fabs, c_hypot, c_pow, c_sqrt,++ -- * Remainder functions+ c_fmod, c_remainder, c_remquo,++ -- * Manipulation functions+ c_copysign, c_nan, c_nextafter,++ -- * Error and gamma functions+ c_erf, c_erfc, c_lgamma, c_tgamma,++ -- * Nearest integer functions+ c_ceil, c_floor, c_nearbyint, c_rint, c_lrint, c_llrint, c_round,+ c_lround, c_llround, c_trunc,++ -- * Maximum, minimum, and positive difference functions+ c_fdim, c_fmax, c_fmin,++ -- * Floating multiply-add+ c_fma,++ -- * Haskell wrappers+ libmDouble, libmDouble2, libmDouble3+) where++import Prelude hiding (Double, Float)++import Data.Floating.Types+import Foreign+import Foreign.C++libmDouble :: (CDouble -> CDouble) -> Double -> Double+libmDouble f a = toFloating $ f (toFloating a)++libmDouble2 :: (CDouble -> CDouble -> CDouble) -> Double -> Double -> Double+libmDouble2 f a b = toFloating $ f (toFloating a) (toFloating b)++libmDouble3 :: (CDouble -> CDouble -> CDouble -> CDouble)+ -> Double -> Double -> Double -> Double+libmDouble3 f a b c = toFloating+ $ f (toFloating a) (toFloating b) (toFloating c)++-- 7.12.4 Trigonometric functions+foreign import ccall unsafe "acos"+ c_acos :: CDouble -> CDouble+foreign import ccall unsafe "asin"+ c_asin :: CDouble -> CDouble+foreign import ccall unsafe "atan"+ c_atan :: CDouble -> CDouble+foreign import ccall unsafe "atan"+ c_atan2 :: CDouble -> CDouble -> CDouble+foreign import ccall unsafe "cos"+ c_cos :: CDouble -> CDouble+foreign import ccall unsafe "sin"+ c_sin :: CDouble -> CDouble+foreign import ccall unsafe "tan"+ c_tan :: CDouble -> CDouble++-- 7.12.5 Hyperbolic functions+foreign import ccall unsafe "acosh"+ c_acosh :: CDouble -> CDouble+foreign import ccall unsafe "asinh"+ c_asinh :: CDouble -> CDouble+foreign import ccall unsafe "atanh"+ c_atanh :: CDouble -> CDouble+foreign import ccall unsafe "cosh"+ c_cosh :: CDouble -> CDouble+foreign import ccall unsafe "sinh"+ c_sinh :: CDouble -> CDouble+foreign import ccall unsafe "tanh"+ c_tanh :: CDouble -> CDouble++-- 7.12.6 Exponential functions+foreign import ccall unsafe "exp"+ c_exp :: CDouble -> CDouble+foreign import ccall unsafe "exp2"+ c_exp2 :: CDouble -> CDouble+foreign import ccall unsafe "expm1"+ c_expm1 :: CDouble -> CDouble+foreign import ccall unsafe "frexp"+ c_frexp :: CDouble -> Ptr CInt -> IO CDouble+foreign import ccall unsafe "ilogb"+ c_ilogb :: CDouble -> CInt+foreign import ccall unsafe "ldexp"+ c_ldexp :: CDouble -> CInt -> CDouble+foreign import ccall unsafe "log"+ c_log :: CDouble -> CDouble+foreign import ccall unsafe "log10"+ c_log10 :: CDouble -> CDouble+foreign import ccall unsafe "log1p"+ c_log1p :: CDouble -> CDouble+foreign import ccall unsafe "log2"+ c_log2 :: CDouble -> CDouble+foreign import ccall unsafe "logb"+ c_logb :: CDouble -> CDouble+foreign import ccall unsafe "modf"+ c_modf :: CDouble -> Ptr CDouble -> IO CDouble+foreign import ccall unsafe "scalbn"+ c_scalbn :: CDouble -> CInt -> CDouble+foreign import ccall unsafe "scalbln"+ c_scalbln :: CDouble -> CLong -> CDouble++-- 7.12.7 Power and absolute value functions+foreign import ccall unsafe "cbrt"+ c_cbrt :: CDouble -> CDouble+foreign import ccall unsafe "fabs"+ c_fabs :: CDouble -> CDouble+foreign import ccall unsafe "hypot"+ c_hypot :: CDouble -> CDouble -> CDouble+foreign import ccall unsafe "pow"+ c_pow :: CDouble -> CDouble -> CDouble+foreign import ccall unsafe "sqrt"+ c_sqrt :: CDouble -> CDouble++-- 7.12.8 Error and gamma functions+foreign import ccall unsafe "erf"+ c_erf :: CDouble -> CDouble+foreign import ccall unsafe "erfc"+ c_erfc :: CDouble -> CDouble+foreign import ccall unsafe "lgamma"+ c_lgamma :: CDouble -> CDouble+foreign import ccall unsafe "tgamma"+ c_tgamma :: CDouble -> CDouble++-- 7.12.9 Nearest integer functions+foreign import ccall unsafe "ceil"+ c_ceil :: CDouble -> CDouble+foreign import ccall unsafe "floor"+ c_floor :: CDouble -> CDouble+foreign import ccall unsafe "nearbyint"+ c_nearbyint :: CDouble -> CDouble+foreign import ccall unsafe "rint"+ c_rint :: CDouble -> CDouble+foreign import ccall unsafe "lrint"+ c_lrint :: CDouble -> CLong+foreign import ccall unsafe "llrint"+ c_llrint :: CDouble -> CLLong+foreign import ccall unsafe "round"+ c_round :: CDouble -> CDouble+foreign import ccall unsafe "lround"+ c_lround :: CDouble -> CLong+foreign import ccall unsafe "llround"+ c_llround :: CDouble -> CLLong+foreign import ccall unsafe "trunc"+ c_trunc :: CDouble -> CDouble++-- 7.12.10 Remainder functions+foreign import ccall unsafe "fmod"+ c_fmod :: CDouble -> CDouble -> CDouble+foreign import ccall unsafe "remainder"+ c_remainder :: CDouble -> CDouble -> CDouble+foreign import ccall unsafe "remquo"+ c_remquo :: CDouble -> CDouble -> Ptr CInt -> IO CDouble++-- 7.12.11 Manipulation functions+foreign import ccall unsafe "copysign"+ c_copysign :: CDouble -> CDouble -> CDouble+foreign import ccall unsafe "nan"+ c_nan :: CString -> IO CDouble+foreign import ccall unsafe "nextafter"+ c_nextafter :: CDouble -> CDouble -> CDouble+-- no nexttoward until we have a long double type.++-- 7.12.12 Maximum, minimum, and positive difference functions+foreign import ccall unsafe "fdim"+ c_fdim :: CDouble -> CDouble -> CDouble+foreign import ccall unsafe "fmax"+ c_fmax :: CDouble -> CDouble -> CDouble+foreign import ccall unsafe "fmin"+ c_fmin :: CDouble -> CDouble -> CDouble++-- 7.12.13 Floating multiply-add+foreign import ccall unsafe "fma"+ c_fma :: CDouble -> CDouble -> CDouble -> CDouble
+ Data/Floating/Classes.hs view
@@ -0,0 +1,98 @@+{-+ - Copyright (C) 2009 Nick Bowler.+ -+ - License BSD2: 2-clause BSD license. See LICENSE for full terms.+ - This is free software: you are free to change and redistribute it.+ - There is NO WARRANTY, to the extent permitted by law.+ -}++-- | Generic classes for floating point types. The interface is loosely based+-- off of the C math library.+module Data.Floating.Classes where++import Prelude hiding (Floating(..), RealFloat(..), RealFrac(..), Ord(..))+import Data.Ratio+import Data.Poset++-- | Classification of floating point values.+data FPClassification = FPInfinite | FPNaN | FPNormal | FPSubNormal | FPZero+ deriving (Show, Read, Eq, Enum, Bounded)++-- | Class for types which can be rounded to integers. The rounding functions+-- in the Prelude are inadequate for floating point because they shoehorn their+-- results into an integral type.+--+-- Minimal complete definition: 'toIntegral' and 'round'.+class (Fractional a, Poset a) => Roundable a where+ -- | Discards the fractional component from a value. Results in 'Nothing'+ -- if the result cannot be represented as an integer, such as if the input+ -- is infinite or NaN.+ toIntegral :: Integral b => a -> Maybe b+ ceiling :: a -> a+ floor :: a -> a+ truncate :: a -> a+ round :: a -> a++ floor x+ | round x == x = x+ | otherwise = round $ x - fromRational (1%2)+ ceiling x+ | round x == x = x+ | otherwise = round $ x + fromRational (1%2)+ truncate x+ | x < 0 = ceiling x+ | x > 0 = floor x+ | otherwise = x++-- | Class for floating point types (real or complex-valued).+--+-- Minimal complete definition: everything.+class Fractional a => Floating a where+ (**) :: a -> a -> a+ sqrt :: a -> a+ acos :: a -> a+ asin :: a -> a+ atan :: a -> a+ cos :: a -> a+ sin :: a -> a+ tan :: a -> a+ acosh :: a -> a+ asinh :: a -> a+ atanh :: a -> a+ cosh :: a -> a+ sinh :: a -> a+ tanh :: a -> a+ exp :: a -> a+ log :: a -> a++-- | Class for real-valued floating point types.+--+-- Minimal complete definition: all except 'pi', 'infinity' and 'nan'.+class Floating a => RealFloat a where+ fma :: a -> a -> a -> a+ copysign :: a -> a -> a+ nextafter :: a -> a -> a+ atan2 :: a -> a -> a+ fmod :: a -> a -> a+ frem :: a -> a -> a+ fquotRem :: a -> a -> (Int, a)+ hypot :: a -> a -> a+ cbrt :: a -> a+ exp2 :: a -> a+ expm1 :: a -> a+ log10 :: a -> a+ log1p :: a -> a+ log2 :: a -> a+ logb :: a -> a+ erf :: a -> a+ erfc :: a -> a+ lgamma :: a -> a+ tgamma :: a -> a+ classify :: a -> FPClassification+ infinity :: a+ nan :: a+ pi :: a++ infinity = 1/0+ nan = 0/0+ pi = 4 * atan 1
+ Data/Floating/Double.hs view
@@ -0,0 +1,162 @@+{-+ - Copyright (C) 2009 Nick Bowler.+ -+ - License BSD2: 2-clause BSD license. See LICENSE for full terms.+ - This is free software: you are free to change and redistribute it.+ - There is NO WARRANTY, to the extent permitted by law.+ -}++{-# LANGUAGE ForeignFunctionInterface, MagicHash, UnboxedTuples #-}+{-# INCLUDE <stdlib.h> <math.h> "cfloat.h" #-}+module Data.Floating.Double (+ Double+) where++import Prelude hiding (Double, Floating(..), RealFloat(..), Ord(..))+import Control.Applicative+import Control.Monad+import Data.Maybe+import Data.Ratio+import Data.Poset++import GHC.Exts hiding (Double(..))+import GHC.Integer+import GHC.Prim++import Foreign+import Foreign.C+import System.IO.Unsafe++import Data.Floating.Types+import Data.Floating.Classes+import Data.Floating.CMath++foreign import ccall unsafe "double_format"+ double_format :: CString -> CString -> CDouble -> IO CInt+foreign import ccall unsafe "double_signum"+ double_signum :: CDouble -> CDouble+foreign import ccall unsafe "double_classify"+ double_classify :: CDouble -> CInt+foreign import ccall unsafe "double_compare"+ double_compare :: CDouble -> CDouble -> CInt+foreign import ccall unsafe "strtod"+ c_strtod :: CString -> Ptr CString -> IO CDouble++instance Show Double where+ show x = unsafePerformIO . withCString "%a" $ \fmt -> do+ size <- double_format nullPtr fmt (toFloating x)+ allocaArray0 (fromIntegral size) $ \buf -> do+ double_format buf fmt (toFloating x)+ peekCString buf++instance Read Double where+ readsPrec _ s = unsafePerformIO . withCString s $ \str -> do+ alloca $ \endbuf -> do+ val <- toFloating <$> c_strtod str endbuf+ end <- peek endbuf+ if end == str+ then return []+ else peekCString end >>= \rem -> return [(val, rem)]++instance Eq Double where+ D# x == D# y = x ==## y+ D# x /= D# y = x /=## y++instance Num Double where+ D# x + D# y = D# (x +## y)+ D# x - D# y = D# (x -## y)+ D# x * D# y = D# (x *## y)+ negate (D# x) = D# (negateDouble# x)+ fromInteger = toFloating+ signum = libmDouble double_signum+ abs = libmDouble c_fabs++instance Enum Double where+ pred x = nextafter x (-infinity)+ succ x = nextafter x infinity+ toEnum = toFloating+ fromEnum = fromJust . toIntegral++instance Poset Double where+ compare a b = toEnum . fromIntegral $ double_compare a' b' where+ a' = toFloating a+ b' = toFloating b+ D# x < D# y = x <## y+ D# x <= D# y = x <=## y+ D# x >= D# y = x >=## y+ D# x > D# y = x >## y++instance Sortable Double where+ isOrdered = not . ((== FPNaN) . classify)+ max = libmDouble2 c_fmax+ min = libmDouble2 c_fmin++instance Fractional Double where+ (D# x) / (D# y) = D# (x /## y)+ fromRational = liftM2 (/)+ (fromInteger . numerator)+ (fromInteger . denominator)++-- | Internal function which discards the fractional component of a Double.+-- The results are meaningful only for finite input.+dropFrac :: Double -> Integer+dropFrac (D# x)+ | e >= 0 = s * 2^e+ | otherwise = quot s (2^(negate e))+ where+ (# s, e# #) = decodeDoubleInteger x+ e = I# e#++instance Roundable Double where+ toIntegral x = case classify x of+ FPInfinite -> Nothing+ FPNaN -> Nothing+ otherwise -> Just . fromInteger . dropFrac $ x+ floor = libmDouble c_floor+ ceiling = libmDouble c_ceil+ truncate = libmDouble c_trunc+ round = libmDouble c_round++instance Floating Double where+ (D# x) ** (D# y) = D# (x **## y)+ sqrt (D# x) = D# (sqrtDouble# x)+ acos (D# x) = D# (acosDouble# x)+ asin (D# x) = D# (asinDouble# x)+ atan (D# x) = D# (atanDouble# x)+ cos (D# x) = D# (cosDouble# x)+ sin (D# x) = D# (sinDouble# x)+ tan (D# x) = D# (tanDouble# x)+ cosh (D# x) = D# (coshDouble# x)+ sinh (D# x) = D# (sinhDouble# x)+ tanh (D# x) = D# (tanhDouble# x)+ exp (D# x) = D# (expDouble# x)+ log (D# x) = D# (logDouble# x)+ acosh = libmDouble c_acosh+ asinh = libmDouble c_asinh+ atanh = libmDouble c_atanh++instance RealFloat Double where+ fma = libmDouble3 c_fma+ copysign = libmDouble2 c_copysign+ nextafter = libmDouble2 c_nextafter+ fmod = libmDouble2 c_fmod+ frem = libmDouble2 c_remainder+ atan2 = libmDouble2 c_atan2+ hypot = libmDouble2 c_hypot+ cbrt = libmDouble c_cbrt+ exp2 = libmDouble c_exp2+ expm1 = libmDouble c_expm1+ log10 = libmDouble c_log10+ log1p = libmDouble c_log1p+ log2 = libmDouble c_log2+ logb = libmDouble c_logb+ erf = libmDouble c_erf+ erfc = libmDouble c_erfc+ lgamma = libmDouble c_lgamma+ tgamma = libmDouble c_tgamma+ classify = toEnum . fromIntegral . double_classify . toFloating++ fquotRem x y = unsafePerformIO . alloca $ \quotPtr -> do+ rem <- c_remquo (toFloating x) (toFloating y) quotPtr+ quot <- peek quotPtr+ return (fromIntegral quot, toFloating rem)
+ Data/Floating/Instances.hs view
@@ -0,0 +1,21 @@+{-+ - Copyright (C) 2009 Nick Bowler.+ -+ - License BSD2: 2-clause BSD license. See LICENSE for full terms.+ - This is free software: you are free to change and redistribute it.+ - There is NO WARRANTY, to the extent permitted by law.+ -}++module Data.Floating.Instances where++import qualified Prelude+import Prelude hiding (round, floor, ceiling, truncate)+import Data.Floating.Classes+import Data.Ratio++instance Integral a => Roundable (Ratio a) where+ toIntegral = Just . fst . properFraction+ round x+ | abs frac >= 1%2 = int%1 + signum frac+ | otherwise = int%1+ where (int, frac) = properFraction x
+ Data/Floating/Prelude.hs view
@@ -0,0 +1,25 @@+{-+ - Copyright (C) 2009 Nick Bowler.+ -+ - License BSD2: 2-clause BSD license. See LICENSE for full terms.+ - This is free software: you are free to change and redistribute it.+ - There is NO WARRANTY, to the extent permitted by law.+ -}++-- | Alternate prelude for the alternate floating point types. This module+-- re-exports the Data.Floating and Data.Poset operations as well as all the+-- Prelude operations that do not conflict.+module Data.Floating.Prelude (+ module Data.Floating,+ module Data.Poset,+ module Prelude+) where++import Prelude hiding (+ Floating(..), RealFloat(..),+ Ordering(..), Ord(..),+ Double, Float,+ round, truncate, ceiling, floor+ )+import Data.Floating+import Data.Poset
+ Data/Floating/Types.hs view
@@ -0,0 +1,88 @@+{-+ - Copyright (C) 2009 Nick Bowler.+ -+ - License BSD2: 2-clause BSD license. See LICENSE for full terms.+ - This is free software: you are free to change and redistribute it.+ - There is NO WARRANTY, to the extent permitted by law.+ -}++-- | Definition of the core floating point types and basic manipulation of+-- them.+{-# LANGUAGE MultiParamTypeClasses, FlexibleInstances, OverlappingInstances #-}+{-# LANGUAGE MagicHash #-}+module Data.Floating.Types (+ Double(..), Float(..), FloatConvert(..)+) where++import Prelude hiding (Double, Float)+import qualified GHC.Exts as GHC+import GHC.Integer+import GHC.Prim+import Foreign.C++import Data.Ratio++import Unsafe.Coerce++-- | The Double type. This is expected to be an identical declaration to+-- the one found in GHC.Prim. We avoid simply using GHC's type because we need +-- to define our own class instances.+data Double = D# Double#++-- | The Float type. +data Float = F# Float#++-- | This type is identical to CDouble. For some reason unknown to me, it is+-- impossible to marshal data from Double to CDouble without losing+-- information. The issue is further complicated by Foreign.C.Types not+-- exporting CDouble's constructor. Thus, to marshal data from Double to+-- CDouble, we construct an instance of this type and then use unsafeCoerce.+newtype FuckFFIDouble = FuckD Double++-- | The analogue of FuckFFIDouble for CFloat.+newtype FuckFFIFloat = FuckF Float++-- | Coercion to floating point types.+class FloatConvert a b where+ -- | Convert to a floating point type. Conversions from integers and real+ -- types are provided, as well as conversions between floating point types.+ -- Conversions between floating point types preserve infinities, negative+ -- zeros and NaNs.+ toFloating :: a -> b++instance FloatConvert Double CDouble where+ toFloating = unsafeCoerce . FuckD++instance FloatConvert CDouble Double where+ toFloating f = let FuckD x = unsafeCoerce f in x++instance FloatConvert Float CFloat where+ toFloating = unsafeCoerce . FuckF++instance FloatConvert CFloat Float where+ toFloating f = let FuckF x = unsafeCoerce f in x++instance FloatConvert Double Float where+ toFloating (D# x) = F# (double2Float# x)++instance FloatConvert Float Double where+ toFloating (F# x) = D# (float2Double# x)++instance FloatConvert Integer Double where+ toFloating x = D# (doubleFromInteger x)++instance FloatConvert Integer Float where+ toFloating x = F# (floatFromInteger x)++instance Real a => FloatConvert a Double where+ toFloating x = D# (num /## denom) where+ D# num = toFloating . numerator . toRational $ x+ D# denom = toFloating . denominator . toRational $ x++instance Real a => FloatConvert a Float where+ toFloating x = F# (divideFloat# num denom) where+ F# num = toFloating . numerator . toRational $ x+ F# denom = toFloating . denominator . toRational $ x++instance FloatConvert a a where+ toFloating = id
+ Data/Poset.hs view
@@ -0,0 +1,46 @@+{-+ - Copyright (C) 2009 Nick Bowler.+ -+ - License BSD2: 2-clause BSD license. See LICENSE for full terms.+ - This is free software: you are free to change and redistribute it.+ - There is NO WARRANTY, to the extent permitted by law.+ -}++-- | Partially ordered data types. The standard 'Prelude.Ord' class is for+-- total orders and therefore not suitable for floating point. However, we can+-- still define meaningful 'max' and 'sort' functions for these types.+--+-- We define our own 'Ord' class which is intended as a replacement for+-- 'Prelude.Ord'. However, in order to take advantage of existing libraries+-- which use 'Prelude.Ord', we make every instance of 'Ord' an instance of+-- 'Prelude.Ord'. This is done using the OverlappingInstances and+-- UndecidableInstances extensions -- it remains to be seen if problems occur+-- as a result of this.+module Data.Poset (+ Poset(..), Sortable(..), Ordering(..), Ord,+ module Data.Poset+) where++import qualified Prelude+import Prelude hiding (Ord(..), Ordering(..))+import Data.Poset.Instances+import Data.Poset.Internal++import Data.Function+import Data.Monoid++instance Poset a => Poset (Maybe a) where+ Just x <= Just y = x <= y+ Nothing <= _ = True+ _ <= _ = False++instance Poset a => Poset [a] where+ compare = (mconcat .) . zipWith compare++-- | Sort a list using the default comparison function.+sort :: Sortable a => [a] -> [a]+sort = sortBy compare++-- | Apply a function to values before comparing.+comparing :: Poset b => (a -> b) -> a -> a -> Ordering+comparing = on compare
+ Data/Poset/Instances.hs view
@@ -0,0 +1,55 @@+{-+ - Copyright (C) 2009 Nick Bowler.+ -+ - License BSD2: 2-clause BSD license. See LICENSE for full terms.+ - This is free software: you are free to change and redistribute it.+ - There is NO WARRANTY, to the extent permitted by law.+ -}++-- | 'Poset' and 'Sortable' instances for instances of 'Prelude.Ord'+{-# LANGUAGE CPP #-}+module Data.Poset.Instances where++import qualified Data.Poset.Internal as Poset+import Data.Poset.Internal (Poset, Sortable, partialOrder, totalOrder)++import Data.Ratio+import Data.List+import Data.Word+import Data.Int++#define POSET_ORD_INSTANCE(ctx, v) instance ctx Poset (v) where { \+ compare = (partialOrder .) . compare; \+ (<) = (<); \+ (<=) = (<=); \+ (>=) = (>=); \+ (>) = (>); \+ (<==>) = const $ const True; \+ (</=>) = const $ const False }++#define SORTABLE_ORD_INSTANCE(ctx, v) instance ctx Sortable (v) where { \+ isOrdered = const True; \+ sortBy f = sortBy $ (totalOrder .) . f; \+ max = max; \+ min = min; }++#define ORD_INSTANCE(ctx, v) \+ POSET_ORD_INSTANCE(ctx, v); \+ SORTABLE_ORD_INSTANCE(ctx, v); \+ instance ctx Poset.Ord (v)++ORD_INSTANCE(, Bool)+ORD_INSTANCE(, Char)+ORD_INSTANCE(, Int)+ORD_INSTANCE(, Int8)+ORD_INSTANCE(, Int16)+ORD_INSTANCE(, Int32)+ORD_INSTANCE(, Int64)+ORD_INSTANCE(, Word)+ORD_INSTANCE(, Word8)+ORD_INSTANCE(, Word16)+ORD_INSTANCE(, Word32)+ORD_INSTANCE(, Word64)+ORD_INSTANCE(, Integer)++ORD_INSTANCE(Integral a =>, Ratio a)
+ Data/Poset/Internal.hs view
@@ -0,0 +1,131 @@+{-+ - Copyright (C) 2009 Nick Bowler.+ -+ - License BSD2: 2-clause BSD license. See LICENSE for full terms.+ - This is free software: you are free to change and redistribute it.+ - There is NO WARRANTY, to the extent permitted by law.+ -}++{-# LANGUAGE FlexibleInstances, OverlappingInstances, UndecidableInstances #-}+module Data.Poset.Internal where++import qualified Data.List as List+import qualified Prelude+import Prelude hiding (Ordering(..), Ord(..))++import Data.Monoid++data Ordering = LT | EQ | GT | NC+ deriving (Eq, Show, Read, Bounded, Enum)++-- Lexicographic ordering.+instance Monoid Ordering where+ mempty = EQ+ mappend EQ x = x+ mappend NC _ = NC+ mappend LT _ = LT+ mappend GT _ = GT++-- | Internal-use function to convert our Ordering to the ordinary one.+totalOrder :: Ordering -> Prelude.Ordering+totalOrder LT = Prelude.LT+totalOrder EQ = Prelude.EQ+totalOrder GT = Prelude.GT+totalOrder NC = error "Uncomparable elements in total order."++-- | Internal-use function to convert the ordinary Ordering to ours.+partialOrder :: Prelude.Ordering -> Ordering+partialOrder Prelude.LT = LT+partialOrder Prelude.EQ = EQ+partialOrder Prelude.GT = GT++-- | Class for partially ordered data types. Instances should satisfy the+-- following laws for all values a, b and c:+--+-- * @a <= a@.+--+-- * @a <= b@ and @b <= a@ implies @a == b@.+--+-- * @a <= b@ and @b <= c@ implies @a <= c@.+--+-- But note that the floating point instances don't satisfy the first rule.+--+-- Minimal complete definition: 'compare' or '<='.+class Eq a => Poset a where+ compare :: a -> a -> Ordering+ -- | Is comparable to.+ (<==>) :: a -> a -> Bool+ -- | Is not comparable to.+ (</=>) :: a -> a -> Bool+ (<) :: a -> a -> Bool+ (<=) :: a -> a -> Bool+ (>=) :: a -> a -> Bool+ (>) :: a -> a -> Bool++ a `compare` b+ | a == b = EQ+ | a <= b = LT+ | b <= a = GT+ | otherwise = NC++ a < b = a `compare` b == LT+ a > b = a `compare` b == GT+ a <==> b = a `compare` b /= NC+ a </=> b = a `compare` b == NC+ a <= b = a < b || a `compare` b == EQ+ a >= b = a > b || a `compare` b == EQ++-- | Class for partially ordered data types where sorting makes sense.+-- This includes all totally ordered sets and floating point types. Instances+-- should satisfy the following laws:+--+-- * The set of elements for which 'isOrdered' returns true is totally ordered.+--+-- * The max (or min) of an insignificant element and a significant element+-- is the significant one.+--+-- * The result of sorting a list should contain only significant elements.+--+-- * @max a b@ = @max b a@+--+-- * @min a b@ = @min b a@+--+-- The idea comes from floating point types, where non-comparable elements+-- (NaNs) are the exception rather than the rule. For these types, we can+-- define 'max', 'min' and 'sortBy' to ignore insignificant elements. Thus, a+-- sort of floating point values will discard all NaNs and order the remaining+-- elements.+--+-- Minimal complete definition: 'isOrdered'+class Poset a => Sortable a where+ sortBy :: (a -> a -> Ordering) -> [a] -> [a]+ isOrdered :: a -> Bool+ max :: a -> a -> a+ min :: a -> a -> a++ sortBy f = List.sortBy ((totalOrder .) . f) . filter isOrdered+ max a b = case a `compare` b of+ LT -> b+ EQ -> a+ GT -> a+ NC -> if isOrdered a then a else if isOrdered b then b else a+ min a b = case a `compare` b of+ LT -> a+ EQ -> b+ GT -> b+ NC -> if isOrdered a then a else if isOrdered b then b else a++-- | Class for totally ordered data types. Instances should satisfy+-- @isOrdered a = True@ for all @a@.+class Sortable a => Ord a++-- This hack allows us to leverage existing data structures defined in terms+-- of 'Prelude.Ord'.+instance Data.Poset.Internal.Ord a => Prelude.Ord a where+ compare = (totalOrder .) . compare+ (<) = (<)+ (<=) = (<=)+ (>=) = (>=)+ (>) = (>)+ min = min+ max = max
+ LICENSE view
@@ -0,0 +1,23 @@+Copyright (c) 2009 Nick Bowler+All rights reserved.++Redistribution and use in source and binary forms, with or without+modification, are permitted provided that the following conditions are met:++1. Redistributions of source code must retain the above copyright notice,+ this list of conditions and the following disclaimer.+2. 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.++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.
+ Setup.lhs view
@@ -0,0 +1,4 @@+#!/usr/bin/env runhaskell++> import Distribution.Simple+> main = defaultMainWithHooks autoconfUserHooks
+ altfloat.buildinfo.in view
@@ -0,0 +1,1 @@+CC-Options: @CC_OPTS@ @CFLAGS@
+ altfloat.cabal view
@@ -0,0 +1,64 @@+Name: altfloat+Version: 0.2+License: OtherLicense+License-File: LICENSE+Cabal-Version: >= 1.2+Author: Nick Bowler+Maintainer: nbowler@draconx.ca+Stability: experimental+Category: Numerical+Build-Type: Simple+Extra-Source-Files: configure.ac, configure, altfloat.buildinfo.in, cfloat.h+Extra-Tmp-Files: altfloat.buildinfo, config.status config.log, config.cache+Synopsis: Alternative floating point support for GHC.+Description:+ A replacement for the standard Haskell floating point types and supporting+ functions. There are a number of shortcomings which I feel severely hinder+ Haskell's utility for numerical computation. These shortcomings include+ .+ * There is no way to sanely convert between Haskell's floating types -- not+ even between Double and CDouble. The implementation of the 'realToFrac'+ function goes through 'Rational', which loses information as 'Rational'+ cannot represent all floating point values.+ .+ * Making floating types an instance of 'Ord' makes no sense. 'Ord' is for+ totally ordered data types, which floats are not. As a result, a number of+ library functions (such as 'max' and 'sort') produce nonsensical results.+ .+ * The 'Enum' instance for floating types similarly makes little sense.+ While 'fromEnum' and 'toEnum' functions use 'Int' instead of 'Integer',+ limiting their usefulness, 'pred' and 'succ' can be defined in a much more+ useful way.+ .+ * Functions that should care about negative zeros, such as 'signum' and+ 'abs', do not.+ .+ * Some functions, such as 'floor', have nonsensical behaviour for+ non-finite input.+ .+ * The selection of floating point library functions pales in comparison to+ C. This problem is made worse since, as noted above, it is impossible to+ convert losslessly from 'Double' to 'CDouble' in order to use the FFI.+ .+ * There is no mechanism for handling rounding modes or exceptions.+ .+ This package is intended to address all of the above issues, and more. All+ are currently addressed except for rounding modes and exceptions.+ .+ Also provided, for convenience, is an alternative to the standard Prelude+ which includes features from this library and the non-overlapping parts of+ the standard Prelude.++Library+ Build-Depends: base >= 4 && < 5, ghc-prim, integer+ C-Sources: cfloat.c+ Exposed-Modules:+ Data.Floating.CMath,+ Data.Floating.Classes,+ Data.Floating.Types,+ Data.Floating.Double,+ Data.Floating.Prelude,+ Data.Floating,+ Data.Poset+ Other-Modules:+ Data.Floating.Instances, Data.Poset.Internal, Data.Poset.Instances
+ cfloat.c view
@@ -0,0 +1,61 @@+/*+ * Floating point functions that are difficult or impossible to implement+ * in pure Haskell.+ *+ * Copyright (C) 2009 Nick Bowler.+ *+ * License BSD2: 2-clause BSD license. See LICENSE for full terms.+ * This is free software: you are free to change and redistribute it.+ * There is NO WARRANTY, to the extent permitted by law.+ */+#include <stdio.h>+#include <stdlib.h>+#include <errno.h>+#include <math.h>++#include "cfloat.h"++int double_format(char *buf, const char *fmt, double val)+{+ if (buf == NULL)+ return snprintf(NULL, 0, fmt, val);+ return sprintf(buf, fmt, val);+}++double double_signum(double val)+{+ if (signbit(val))+ return -1;+ return 1;+}++int double_classify(double val)+{+ switch (fpclassify(val)) {+ case FP_INFINITE:+ return 0;+ case FP_NAN:+ return 1;+ case FP_NORMAL:+ return 2;+ case FP_SUBNORMAL:+ return 3;+ case FP_ZERO:+ return 4;+ }++ return -1;+}++int double_compare(double a, double b)+{+ if (isless(a, b))+ return 0;+ if (a == b)+ return 1;+ if (isgreater(a, b))+ return 2;+ if (isunordered(a, b))+ return 3;+ return -1;+}
+ cfloat.h view
@@ -0,0 +1,9 @@+#ifndef CFLOAT_H_+#define CFLOAT_H_++int double_format(char *buf, const char *fmt, double val);+double double_signum(double val);+int double_classify(double val);+int double_compare(double a, double b);++#endif
+ configure view
@@ -0,0 +1,3797 @@+#! /bin/sh+# Guess values for system-dependent variables and create Makefiles.+# Generated by GNU Autoconf 2.64 for altfloat 0.1.+#+# Report bugs to <nbowler@draconx.ca>.+#+# Copyright (C) 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001,+# 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 Free Software+# Foundation, Inc.+#+# This configure script is free software; the Free Software Foundation+# gives unlimited permission to copy, distribute and modify it.+## -------------------- ##+## M4sh Initialization. ##+## -------------------- ##++# Be more Bourne compatible+DUALCASE=1; export DUALCASE # for MKS sh+if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then :+ emulate sh+ NULLCMD=:+ # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which+ # is contrary to our usage. Disable this feature.+ alias -g '${1+"$@"}'='"$@"'+ setopt NO_GLOB_SUBST+else+ case `(set -o) 2>/dev/null` in #(+ *posix*) :+ set -o posix ;; #(+ *) :+ ;;+esac+fi+++as_nl='+'+export as_nl+# Printing a long string crashes Solaris 7 /usr/bin/printf.+as_echo='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'+as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo+as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo$as_echo+# Prefer a ksh shell builtin over an external printf program on Solaris,+# but without wasting forks for bash or zsh.+if test -z "$BASH_VERSION$ZSH_VERSION" \+ && (test "X`print -r -- $as_echo`" = "X$as_echo") 2>/dev/null; then+ as_echo='print -r --'+ as_echo_n='print -rn --'+elif (test "X`printf %s $as_echo`" = "X$as_echo") 2>/dev/null; then+ as_echo='printf %s\n'+ as_echo_n='printf %s'+else+ if test "X`(/usr/ucb/echo -n -n $as_echo) 2>/dev/null`" = "X-n $as_echo"; then+ as_echo_body='eval /usr/ucb/echo -n "$1$as_nl"'+ as_echo_n='/usr/ucb/echo -n'+ else+ as_echo_body='eval expr "X$1" : "X\\(.*\\)"'+ as_echo_n_body='eval+ arg=$1;+ case $arg in #(+ *"$as_nl"*)+ expr "X$arg" : "X\\(.*\\)$as_nl";+ arg=`expr "X$arg" : ".*$as_nl\\(.*\\)"`;;+ esac;+ expr "X$arg" : "X\\(.*\\)" | tr -d "$as_nl"+ '+ export as_echo_n_body+ as_echo_n='sh -c $as_echo_n_body as_echo'+ fi+ export as_echo_body+ as_echo='sh -c $as_echo_body as_echo'+fi++# The user is always right.+if test "${PATH_SEPARATOR+set}" != set; then+ PATH_SEPARATOR=:+ (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 && {+ (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 ||+ PATH_SEPARATOR=';'+ }+fi+++# IFS+# We need space, tab and new line, in precisely that order. Quoting is+# there to prevent editors from complaining about space-tab.+# (If _AS_PATH_WALK were called with IFS unset, it would disable word+# splitting by setting IFS to empty value.)+IFS=" "" $as_nl"++# Find who we are. Look in the path if we contain no directory separator.+case $0 in #((+ *[\\/]* ) as_myself=$0 ;;+ *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR+for as_dir in $PATH+do+ IFS=$as_save_IFS+ test -z "$as_dir" && as_dir=.+ test -r "$as_dir/$0" && as_myself=$as_dir/$0 && break+ done+IFS=$as_save_IFS++ ;;+esac+# We did not find ourselves, most probably we were run as `sh COMMAND'+# in which case we are not to be found in the path.+if test "x$as_myself" = x; then+ as_myself=$0+fi+if test ! -f "$as_myself"; then+ $as_echo "$as_myself: error: cannot find myself; rerun with an absolute file name" >&2+ exit 1+fi++# Unset variables that we do not need and which cause bugs (e.g. in+# pre-3.0 UWIN ksh). 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" >&6; }+if test "${ac_cv_prog_ac_ct_CC+set}" = set; then :+ $as_echo_n "(cached) " >&6+else+ if test -n "$ac_ct_CC"; then+ ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.+else+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR+for as_dir in $PATH+do+ IFS=$as_save_IFS+ test -z "$as_dir" && as_dir=.+ for ac_exec_ext in '' $ac_executable_extensions; do+ if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then+ ac_cv_prog_ac_ct_CC="gcc"+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5+ break 2+ fi+done+ done+IFS=$as_save_IFS++fi+fi+ac_ct_CC=$ac_cv_prog_ac_ct_CC+if test -n "$ac_ct_CC"; then+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5+$as_echo "$ac_ct_CC" >&6; }+else+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5+$as_echo "no" >&6; }+fi++ if test "x$ac_ct_CC" = x; then+ CC=""+ else+ case $cross_compiling:$ac_tool_warned in+yes:)+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}+ac_tool_warned=yes ;;+esac+ CC=$ac_ct_CC+ fi+else+ CC="$ac_cv_prog_CC"+fi++if test -z "$CC"; then+ if test -n "$ac_tool_prefix"; then+ # Extract the first word of "${ac_tool_prefix}cc", so it can be a program name with args.+set dummy ${ac_tool_prefix}cc; ac_word=$2+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5+$as_echo_n "checking for $ac_word... " >&6; }+if test "${ac_cv_prog_CC+set}" = set; then :+ $as_echo_n "(cached) " >&6+else+ if test -n "$CC"; then+ ac_cv_prog_CC="$CC" # Let the user override the test.+else+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR+for as_dir in $PATH+do+ IFS=$as_save_IFS+ test -z "$as_dir" && as_dir=.+ for ac_exec_ext in '' $ac_executable_extensions; do+ if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then+ ac_cv_prog_CC="${ac_tool_prefix}cc"+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5+ break 2+ fi+done+ done+IFS=$as_save_IFS++fi+fi+CC=$ac_cv_prog_CC+if test -n "$CC"; then+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5+$as_echo "$CC" >&6; }+else+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5+$as_echo "no" >&6; }+fi+++ fi+fi+if test -z "$CC"; then+ # Extract the first word of "cc", so it can be a program name with args.+set dummy cc; ac_word=$2+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5+$as_echo_n "checking for $ac_word... " >&6; }+if test "${ac_cv_prog_CC+set}" = set; then :+ $as_echo_n "(cached) " >&6+else+ if test -n "$CC"; then+ ac_cv_prog_CC="$CC" # Let the user override the test.+else+ ac_prog_rejected=no+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR+for as_dir in $PATH+do+ IFS=$as_save_IFS+ test -z "$as_dir" && as_dir=.+ for ac_exec_ext in '' $ac_executable_extensions; do+ if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then+ if test "$as_dir/$ac_word$ac_exec_ext" = "/usr/ucb/cc"; then+ ac_prog_rejected=yes+ continue+ fi+ ac_cv_prog_CC="cc"+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5+ break 2+ fi+done+ done+IFS=$as_save_IFS++if test $ac_prog_rejected = yes; then+ # We found a bogon in the path, so make sure we never use it.+ set dummy $ac_cv_prog_CC+ shift+ if test $# != 0; then+ # We chose a different compiler from the bogus one.+ # However, it has the same basename, so the bogon will be chosen+ # first if we set CC to just the basename; use the full file name.+ shift+ ac_cv_prog_CC="$as_dir/$ac_word${1+' '}$@"+ fi+fi+fi+fi+CC=$ac_cv_prog_CC+if test -n "$CC"; then+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5+$as_echo "$CC" >&6; }+else+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5+$as_echo "no" >&6; }+fi+++fi+if test -z "$CC"; then+ if test -n "$ac_tool_prefix"; then+ for ac_prog in cl.exe+ do+ # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.+set dummy $ac_tool_prefix$ac_prog; ac_word=$2+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5+$as_echo_n "checking for $ac_word... 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For instance with Cygwin, `ls conftest' will+# work properly (i.e., refer to `conftest.exe'), while it won't with+# `rm'.+for ac_file in conftest.exe conftest conftest.*; do+ test -f "$ac_file" || continue+ case $ac_file in+ *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM | *.o | *.obj ) ;;+ *.* ) ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'`+ break;;+ * ) break;;+ esac+done+else+ { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}+as_fn_error "cannot compute suffix of executables: cannot compile and link+See \`config.log' for more details." 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" >&6; }+if test "${ac_cv_objext+set}" = set; then :+ $as_echo_n "(cached) " >&6+else+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext+/* end confdefs.h. */++int+main ()+{++ ;+ return 0;+}+_ACEOF+rm -f conftest.o conftest.obj+if { { ac_try="$ac_compile"+case "(($ac_try" in+ *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;+ *) ac_try_echo=$ac_try;;+esac+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""+$as_echo "$ac_try_echo"; } >&5+ (eval "$ac_compile") 2>&5+ ac_status=$?+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5+ test $ac_status = 0; }; then :+ for ac_file in conftest.o conftest.obj conftest.*; do+ test -f "$ac_file" || continue;+ case $ac_file in+ *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM ) ;;+ *) ac_cv_objext=`expr "$ac_file" : '.*\.\(.*\)'`+ break;;+ esac+done+else+ $as_echo "$as_me: failed program was:" >&5+sed 's/^/| /' conftest.$ac_ext >&5++{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}+as_fn_error "cannot compute suffix of object files: cannot compile+See \`config.log' for more details." "$LINENO" 5; }+fi+rm -f conftest.$ac_cv_objext conftest.$ac_ext+fi+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_objext" >&5+$as_echo "$ac_cv_objext" >&6; }+OBJEXT=$ac_cv_objext+ac_objext=$OBJEXT+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are using the GNU C compiler" >&5+$as_echo_n "checking whether we are using the GNU C compiler... " >&6; }+if test "${ac_cv_c_compiler_gnu+set}" = set; then :+ $as_echo_n "(cached) " >&6+else+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext+/* end confdefs.h. */++int+main ()+{+#ifndef __GNUC__+ choke me+#endif++ ;+ return 0;+}+_ACEOF+if ac_fn_c_try_compile "$LINENO"; then :+ ac_compiler_gnu=yes+else+ ac_compiler_gnu=no+fi+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext+ac_cv_c_compiler_gnu=$ac_compiler_gnu++fi+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_compiler_gnu" >&5+$as_echo "$ac_cv_c_compiler_gnu" >&6; }+if test $ac_compiler_gnu = yes; then+ GCC=yes+else+ GCC=+fi+ac_test_CFLAGS=${CFLAGS+set}+ac_save_CFLAGS=$CFLAGS+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC accepts -g" >&5+$as_echo_n "checking whether $CC accepts -g... " >&6; }+if test "${ac_cv_prog_cc_g+set}" = set; then :+ $as_echo_n "(cached) " >&6+else+ ac_save_c_werror_flag=$ac_c_werror_flag+ ac_c_werror_flag=yes+ ac_cv_prog_cc_g=no+ CFLAGS="-g"+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext+/* end confdefs.h. */++int+main ()+{++ ;+ return 0;+}+_ACEOF+if ac_fn_c_try_compile "$LINENO"; then :+ ac_cv_prog_cc_g=yes+else+ CFLAGS=""+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext+/* end confdefs.h. */++int+main ()+{++ ;+ return 0;+}+_ACEOF+if ac_fn_c_try_compile "$LINENO"; then :++else+ ac_c_werror_flag=$ac_save_c_werror_flag+ CFLAGS="-g"+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext+/* end confdefs.h. */++int+main ()+{++ ;+ return 0;+}+_ACEOF+if ac_fn_c_try_compile "$LINENO"; then :+ ac_cv_prog_cc_g=yes+fi+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext+fi+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext+fi+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext+ ac_c_werror_flag=$ac_save_c_werror_flag+fi+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_g" >&5+$as_echo "$ac_cv_prog_cc_g" >&6; }+if test "$ac_test_CFLAGS" = set; then+ CFLAGS=$ac_save_CFLAGS+elif test $ac_cv_prog_cc_g = yes; then+ if test "$GCC" = yes; then+ CFLAGS="-g -O2"+ else+ CFLAGS="-g"+ fi+else+ if test "$GCC" = yes; then+ CFLAGS="-O2"+ else+ CFLAGS=+ fi+fi+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $CC option to accept ISO C89" >&5+$as_echo_n "checking for $CC option to accept ISO C89... " >&6; }+if test "${ac_cv_prog_cc_c89+set}" = set; then :+ $as_echo_n "(cached) " >&6+else+ ac_cv_prog_cc_c89=no+ac_save_CC=$CC+cat confdefs.h - <<_ACEOF >conftest.$ac_ext+/* end confdefs.h. */+#include <stdarg.h>+#include <stdio.h>+#include <sys/types.h>+#include <sys/stat.h>+/* Most of the following tests are stolen from RCS 5.7's src/conf.sh. */+struct buf { int x; };+FILE * (*rcsopen) (struct buf *, struct stat *, int);+static char *e (p, i)+ char **p;+ int i;+{+ return p[i];+}+static char *f (char * (*g) (char **, int), char **p, ...)+{+ char *s;+ va_list v;+ va_start (v,p);+ s = g (p, va_arg (v,int));+ va_end (v);+ return s;+}++/* OSF 4.0 Compaq cc is some sort of almost-ANSI by default. It has+ function prototypes and stuff, but not '\xHH' hex character constants.+ These don't provoke an error unfortunately, instead are silently treated+ as 'x'. The following induces an error, until -std is added to get+ proper ANSI mode. Curiously '\x00'!='x' always comes out true, for an+ array size at least. It's necessary to write '\x00'==0 to get something+ that's true only with -std. */+int osf4_cc_array ['\x00' == 0 ? 1 : -1];++/* IBM C 6 for AIX is almost-ANSI by default, but it replaces macro parameters+ inside strings and character constants. */+#define FOO(x) 'x'+int xlc6_cc_array[FOO(a) == 'x' ? 1 : -1];++int test (int i, double x);+struct s1 {int (*f) (int a);};+struct s2 {int (*f) (double a);};+int pairnames (int, char **, FILE *(*)(struct buf *, struct stat *, int), int, int);+int argc;+char **argv;+int+main ()+{+return f (e, argv, 0) != argv[0] || f (e, argv, 1) != argv[1];+ ;+ return 0;+}+_ACEOF+for ac_arg in '' -qlanglvl=extc89 -qlanglvl=ansi -std \+ -Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__"+do+ CC="$ac_save_CC $ac_arg"+ if ac_fn_c_try_compile "$LINENO"; then :+ ac_cv_prog_cc_c89=$ac_arg+fi+rm -f core conftest.err conftest.$ac_objext+ test "x$ac_cv_prog_cc_c89" != "xno" && break+done+rm -f conftest.$ac_ext+CC=$ac_save_CC++fi+# AC_CACHE_VAL+case "x$ac_cv_prog_cc_c89" in+ x)+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: none needed" >&5+$as_echo "none needed" >&6; } ;;+ xno)+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5+$as_echo "unsupported" >&6; } ;;+ *)+ CC="$CC $ac_cv_prog_cc_c89"+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c89" >&5+$as_echo "$ac_cv_prog_cc_c89" >&6; } ;;+esac+if test "x$ac_cv_prog_cc_c89" != xno; then :++fi++ac_ext=c+ac_cpp='$CPP $CPPFLAGS'+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'+ac_compiler_gnu=$ac_cv_c_compiler_gnu++ { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $CC option to accept ISO C99" >&5+$as_echo_n "checking for $CC option to accept ISO C99... " >&6; }+if test "${ac_cv_prog_cc_c99+set}" = set; then :+ $as_echo_n "(cached) " >&6+else+ ac_cv_prog_cc_c99=no+ac_save_CC=$CC+cat confdefs.h - <<_ACEOF >conftest.$ac_ext+/* end confdefs.h. */+#include <stdarg.h>+#include <stdbool.h>+#include <stdlib.h>+#include <wchar.h>+#include <stdio.h>++// Check varargs macros. These examples are taken from C99 6.10.3.5.+#define debug(...) fprintf (stderr, __VA_ARGS__)+#define showlist(...) puts (#__VA_ARGS__)+#define report(test,...) ((test) ? puts (#test) : printf (__VA_ARGS__))+static void+test_varargs_macros (void)+{+ int x = 1234;+ int y = 5678;+ debug ("Flag");+ debug ("X = %d\n", x);+ showlist (The first, second, and third items.);+ report (x>y, "x is %d but y is %d", x, y);+}++// Check long long types.+#define BIG64 18446744073709551615ull+#define BIG32 4294967295ul+#define BIG_OK (BIG64 / BIG32 == 4294967297ull && BIG64 % BIG32 == 0)+#if !BIG_OK+ your preprocessor is broken;+#endif+#if BIG_OK+#else+ your preprocessor is broken;+#endif+static long long int bignum = -9223372036854775807LL;+static unsigned long long int ubignum = BIG64;++struct incomplete_array+{+ int datasize;+ double data[];+};++struct named_init {+ int number;+ const wchar_t *name;+ double average;+};++typedef const char *ccp;++static inline int+test_restrict (ccp restrict text)+{+ // See if C++-style comments work.+ // Iterate through items via the restricted pointer.+ // Also check for declarations in for loops.+ for (unsigned int i = 0; *(text+i) != '\0'; ++i)+ continue;+ return 0;+}++// Check varargs and va_copy.+static void+test_varargs (const char *format, ...)+{+ va_list args;+ va_start (args, format);+ va_list args_copy;+ va_copy (args_copy, args);++ const char *str;+ int number;+ float fnumber;++ while (*format)+ {+ switch (*format++)+ {+ case 's': // string+ str = va_arg (args_copy, const char *);+ break;+ case 'd': // int+ number = va_arg (args_copy, int);+ break;+ case 'f': // float+ fnumber = va_arg (args_copy, double);+ break;+ default:+ break;+ }+ }+ va_end (args_copy);+ va_end (args);+}++int+main ()+{++ // Check bool.+ _Bool success = false;++ // Check restrict.+ if (test_restrict ("String literal") == 0)+ success = true;+ char *restrict newvar = "Another string";++ // Check varargs.+ test_varargs ("s, d' f .", "string", 65, 34.234);+ test_varargs_macros ();++ // Check flexible array members.+ struct incomplete_array *ia =+ malloc (sizeof (struct incomplete_array) + (sizeof (double) * 10));+ ia->datasize = 10;+ for (int i = 0; i < ia->datasize; ++i)+ ia->data[i] = i * 1.234;++ // Check named initializers.+ struct named_init ni = {+ .number = 34,+ .name = L"Test wide string",+ .average = 543.34343,+ };++ ni.number = 58;++ int dynamic_array[ni.number];+ dynamic_array[ni.number - 1] = 543;++ // work around unused variable warnings+ return (!success || bignum == 0LL || ubignum == 0uLL || newvar[0] == 'x'+ || dynamic_array[ni.number - 1] != 543);++ ;+ return 0;+}+_ACEOF+for ac_arg in '' -std=gnu99 -std=c99 -c99 -AC99 -xc99=all -qlanglvl=extc99+do+ CC="$ac_save_CC $ac_arg"+ if ac_fn_c_try_compile "$LINENO"; then :+ ac_cv_prog_cc_c99=$ac_arg+fi+rm -f core conftest.err conftest.$ac_objext+ test "x$ac_cv_prog_cc_c99" != "xno" && break+done+rm -f conftest.$ac_ext+CC=$ac_save_CC++fi+# AC_CACHE_VAL+case "x$ac_cv_prog_cc_c99" in+ x)+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: none needed" >&5+$as_echo "none needed" >&6; } ;;+ xno)+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5+$as_echo "unsupported" >&6; } ;;+ *)+ CC="$CC $ac_cv_prog_cc_c99"+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c99" >&5+$as_echo "$ac_cv_prog_cc_c99" >&6; } ;;+esac+if test "x$ac_cv_prog_cc_c99" != xno; then :++fi++++CC_OPTS=`echo $CC | sed 's/[^[:space:]]*//'`+++ac_config_files="$ac_config_files altfloat.buildinfo"++cat >confcache <<\_ACEOF+# This file is a shell script that caches the results of configure+# tests run on this system so they can be shared between configure+# scripts and configure runs, see configure's option --config-cache.+# It is not useful on other systems. 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The arguments+# must be portable across $(()) and expr.+if (eval "test \$(( 1 + 1 )) = 2") 2>/dev/null; then :+ eval 'as_fn_arith ()+ {+ as_val=$(( $* ))+ }'+else+ as_fn_arith ()+ {+ as_val=`expr "$@" || test $? -eq 1`+ }+fi # as_fn_arith+++if expr a : '\(a\)' >/dev/null 2>&1 &&+ test "X`expr 00001 : '.*\(...\)'`" = X001; then+ as_expr=expr+else+ as_expr=false+fi++if (basename -- /) >/dev/null 2>&1 && test "X`basename -- / 2>&1`" = "X/"; then+ as_basename=basename+else+ as_basename=false+fi++if (as_dir=`dirname -- /` && test "X$as_dir" = X/) >/dev/null 2>&1; then+ as_dirname=dirname+else+ as_dirname=false+fi++as_me=`$as_basename -- "$0" ||+$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \+ X"$0" : 'X\(//\)$' \| \+ X"$0" : 'X\(/\)' \| . 2>/dev/null ||+$as_echo X/"$0" |+ sed '/^.*\/\([^/][^/]*\)\/*$/{+ s//\1/+ q+ }+ /^X\/\(\/\/\)$/{+ s//\1/+ q+ }+ /^X\/\(\/\).*/{+ s//\1/+ q+ }+ s/.*/./; q'`++# Avoid depending upon Character Ranges.+as_cr_letters='abcdefghijklmnopqrstuvwxyz'+as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ'+as_cr_Letters=$as_cr_letters$as_cr_LETTERS+as_cr_digits='0123456789'+as_cr_alnum=$as_cr_Letters$as_cr_digits++ECHO_C= ECHO_N= ECHO_T=+case `echo -n x` in #(((((+-n*)+ case `echo 'xy\c'` in+ *c*) ECHO_T=' ';; # ECHO_T is single tab character.+ xy) ECHO_C='\c';;+ *) echo `echo ksh88 bug on AIX 6.1` > /dev/null+ ECHO_T=' ';;+ esac;;+*)+ ECHO_N='-n';;+esac++rm -f conf$$ conf$$.exe conf$$.file+if test -d conf$$.dir; then+ rm -f conf$$.dir/conf$$.file+else+ rm -f conf$$.dir+ mkdir conf$$.dir 2>/dev/null+fi+if (echo >conf$$.file) 2>/dev/null; then+ if ln -s conf$$.file conf$$ 2>/dev/null; then+ as_ln_s='ln -s'+ # ... but there are two gotchas:+ # 1) On MSYS, both `ln -s file dir' and `ln file dir' fail.+ # 2) DJGPP < 2.04 has no symlinks; `ln -s' creates a wrapper executable.+ # In both cases, we have to default to `cp -p'.+ ln -s conf$$.file conf$$.dir 2>/dev/null && test ! -f conf$$.exe ||+ as_ln_s='cp -p'+ elif ln conf$$.file conf$$ 2>/dev/null; then+ as_ln_s=ln+ else+ as_ln_s='cp -p'+ fi+else+ as_ln_s='cp -p'+fi+rm -f conf$$ conf$$.exe conf$$.dir/conf$$.file conf$$.file+rmdir conf$$.dir 2>/dev/null+++# as_fn_mkdir_p+# -------------+# Create "$as_dir" as a directory, including parents if necessary.+as_fn_mkdir_p ()+{++ case $as_dir in #(+ -*) as_dir=./$as_dir;;+ esac+ test -d "$as_dir" || eval $as_mkdir_p || {+ as_dirs=+ while :; do+ case $as_dir in #(+ *\'*) as_qdir=`$as_echo "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #'(+ *) as_qdir=$as_dir;;+ esac+ as_dirs="'$as_qdir' $as_dirs"+ as_dir=`$as_dirname -- "$as_dir" ||+$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \+ X"$as_dir" : 'X\(//\)[^/]' \| \+ X"$as_dir" : 'X\(//\)$' \| \+ X"$as_dir" : 'X\(/\)' \| . 2>/dev/null ||+$as_echo X"$as_dir" |+ sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{+ s//\1/+ q+ }+ /^X\(\/\/\)[^/].*/{+ s//\1/+ q+ }+ /^X\(\/\/\)$/{+ s//\1/+ q+ }+ /^X\(\/\).*/{+ s//\1/+ q+ }+ s/.*/./; q'`+ test -d "$as_dir" && break+ done+ test -z "$as_dirs" || eval "mkdir $as_dirs"+ } || test -d "$as_dir" || as_fn_error "cannot create directory $as_dir"+++} # as_fn_mkdir_p+if mkdir -p . 2>/dev/null; then+ as_mkdir_p='mkdir -p "$as_dir"'+else+ test -d ./-p && rmdir ./-p+ as_mkdir_p=false+fi++if test -x / >/dev/null 2>&1; then+ as_test_x='test -x'+else+ if ls -dL / >/dev/null 2>&1; then+ as_ls_L_option=L+ else+ as_ls_L_option=+ fi+ as_test_x='+ eval sh -c '\''+ if test -d "$1"; then+ test -d "$1/.";+ else+ case $1 in #(+ -*)set "./$1";;+ esac;+ case `ls -ld'$as_ls_L_option' "$1" 2>/dev/null` in #((+ ???[sx]*):;;*)false;;esac;fi+ '\'' sh+ '+fi+as_executable_p=$as_test_x++# Sed expression to map a string onto a valid CPP name.+as_tr_cpp="eval sed 'y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g'"++# Sed expression to map a string onto a valid variable name.+as_tr_sh="eval sed 'y%*+%pp%;s%[^_$as_cr_alnum]%_%g'"+++exec 6>&1+## ----------------------------------- ##+## Main body of $CONFIG_STATUS script. ##+## ----------------------------------- ##+_ASEOF+test $as_write_fail = 0 && chmod +x $CONFIG_STATUS || ac_write_fail=1++cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1+# Save the log message, to keep $0 and so on meaningful, and to+# report actual input values of CONFIG_FILES etc. instead of their+# values after options handling.+ac_log="+This file was extended by altfloat $as_me 0.1, which was+generated by GNU Autoconf 2.64. Invocation command line was++ CONFIG_FILES = $CONFIG_FILES+ CONFIG_HEADERS = $CONFIG_HEADERS+ CONFIG_LINKS = $CONFIG_LINKS+ CONFIG_COMMANDS = $CONFIG_COMMANDS+ $ $0 $@++on `(hostname || uname -n) 2>/dev/null | sed 1q`+"++_ACEOF++case $ac_config_files in *"+"*) set x $ac_config_files; shift; ac_config_files=$*;;+esac++++cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1+# Files that config.status was made for.+config_files="$ac_config_files"++_ACEOF++cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1+ac_cs_usage="\+\`$as_me' instantiates files and other configuration actions+from templates according to the current configuration. Unless the files+and actions are specified as TAGs, all are instantiated by default.++Usage: $0 [OPTION]... [TAG]...++ -h, --help print this help, then exit+ -V, --version print version number and configuration settings, then exit+ -q, --quiet, --silent+ do not print progress messages+ -d, --debug don't remove temporary files+ --recheck update $as_me by reconfiguring in the same conditions+ --file=FILE[:TEMPLATE]+ instantiate the configuration file FILE++Configuration files:+$config_files++Report bugs to <nbowler@draconx.ca>."++_ACEOF+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1+ac_cs_version="\\+altfloat config.status 0.1+configured by $0, generated by GNU Autoconf 2.64,+ with options \\"`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`\\"++Copyright (C) 2009 Free Software Foundation, Inc.+This config.status script is free software; the Free Software Foundation+gives unlimited permission to copy, distribute and modify it."++ac_pwd='$ac_pwd'+srcdir='$srcdir'+test -n "\$AWK" || AWK=awk+_ACEOF++cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1+# The default lists apply if the user does not specify any file.+ac_need_defaults=:+while test $# != 0+do+ case $1 in+ --*=*)+ ac_option=`expr "X$1" : 'X\([^=]*\)='`+ ac_optarg=`expr "X$1" : 'X[^=]*=\(.*\)'`+ ac_shift=:+ ;;+ *)+ ac_option=$1+ ac_optarg=$2+ ac_shift=shift+ ;;+ esac++ case $ac_option in+ # Handling of the options.+ -recheck | --recheck | --rechec | --reche | --rech | --rec | --re | --r)+ ac_cs_recheck=: ;;+ --version | --versio | --versi | --vers | --ver | --ve | --v | -V )+ $as_echo "$ac_cs_version"; exit ;;+ --debug | --debu | --deb | --de | --d | -d )+ debug=: ;;+ --file | --fil | --fi | --f )+ $ac_shift+ case $ac_optarg in+ *\'*) ac_optarg=`$as_echo "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"` ;;+ esac+ as_fn_append CONFIG_FILES " '$ac_optarg'"+ ac_need_defaults=false;;+ --he | --h | --help | --hel | -h )+ $as_echo "$ac_cs_usage"; exit ;;+ -q | -quiet | --quiet | --quie | --qui | --qu | --q \+ | -silent | --silent | --silen | --sile | --sil | --si | --s)+ ac_cs_silent=: ;;++ # This is an error.+ -*) as_fn_error "unrecognized option: \`$1'+Try \`$0 --help' for more information." ;;++ *) as_fn_append ac_config_targets " $1"+ ac_need_defaults=false ;;++ esac+ shift+done++ac_configure_extra_args=++if $ac_cs_silent; then+ exec 6>/dev/null+ ac_configure_extra_args="$ac_configure_extra_args --silent"+fi++_ACEOF+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1+if \$ac_cs_recheck; then+ set X '$SHELL' '$0' $ac_configure_args \$ac_configure_extra_args --no-create --no-recursion+ shift+ \$as_echo "running CONFIG_SHELL=$SHELL \$*" >&6+ CONFIG_SHELL='$SHELL'+ export CONFIG_SHELL+ exec "\$@"+fi++_ACEOF+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1+exec 5>>config.log+{+ echo+ sed 'h;s/./-/g;s/^.../## /;s/...$/ ##/;p;x;p;x' <<_ASBOX+## Running $as_me. ##+_ASBOX+ $as_echo "$ac_log"+} >&5++_ACEOF+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1+_ACEOF++cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1++# Handling of arguments.+for ac_config_target in $ac_config_targets+do+ case $ac_config_target in+ "altfloat.buildinfo") CONFIG_FILES="$CONFIG_FILES altfloat.buildinfo" ;;++ *) as_fn_error "invalid argument: \`$ac_config_target'" "$LINENO" 5;;+ esac+done+++# If the user did not use the arguments to specify the items to instantiate,+# then the envvar interface is used. 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Please make sure it is defined." >&5+$as_echo "$as_me: WARNING: $ac_file contains a reference to the variable \`datarootdir'+which seems to be undefined. Please make sure it is defined." >&2;}++ rm -f "$tmp/stdin"+ case $ac_file in+ -) cat "$tmp/out" && rm -f "$tmp/out";;+ *) rm -f "$ac_file" && mv "$tmp/out" "$ac_file";;+ esac \+ || as_fn_error "could not create $ac_file" "$LINENO" 5+ ;;++++ esac++done # for ac_tag+++as_fn_exit 0+_ACEOF+ac_clean_files=$ac_clean_files_save++test $ac_write_fail = 0 ||+ as_fn_error "write failure creating $CONFIG_STATUS" "$LINENO" 5+++# configure is writing to config.log, and then calls config.status.+# config.status does its own redirection, appending to config.log.+# Unfortunately, on DOS this fails, as config.log is still kept open+# by configure, so config.status won't be able to write to it; its+# output is simply discarded. So we exec the FD to /dev/null,+# effectively closing config.log, so it can be properly (re)opened and+# appended to by config.status. When coming back to configure, we+# need to make the FD available again.+if test "$no_create" != yes; then+ ac_cs_success=:+ ac_config_status_args=+ test "$silent" = yes &&+ ac_config_status_args="$ac_config_status_args --quiet"+ exec 5>/dev/null+ $SHELL $CONFIG_STATUS $ac_config_status_args || ac_cs_success=false+ exec 5>>config.log+ # Use ||, not &&, to avoid exiting from the if with $? = 1, which+ # would make configure fail if this is the last instruction.+ $ac_cs_success || as_fn_exit $?+fi+if test -n "$ac_unrecognized_opts" && test "$enable_option_checking" != no; then+ { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: unrecognized options: $ac_unrecognized_opts" >&5+$as_echo "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2;}+fi+
+ configure.ac view
@@ -0,0 +1,24 @@+dnl Copyright (C) 2009 Nick Bowler+dnl Copying and distribution of this file, with or without modification,+dnl are permitted in any medium without royalty provided the copyright+dnl notice and this notice are preserved. This file is offered as-is,+dnl without any warranty.++AC_PREREQ(2.62)+AC_INIT([altfloat],[0.1],[nbowler@draconx.ca])+AC_CONFIG_SRCDIR([altfloat.cabal])++dnl We don't actually care, but this shuts up the warning.+AC_ARG_WITH([compiler], [AS_HELP_STRING([--with-compiler],+ [specify which Haskell compiler to use])])++AC_PROG_CC_C99++dnl Cabal won't let us specify the C compiler, so we need this hack.+CC_OPTS=`echo $CC | sed 's/@<:@^@<:@:space:@:>@@:>@*//'`+AC_SUBST([CC_OPTS])++AC_CONFIG_FILES([+ altfloat.buildinfo+])+AC_OUTPUT