Hello community, here is the log from the commit of package ghc-intervals for openSUSE:Factory checked in at 2017-08-31 20:47:59 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Comparing /work/SRC/openSUSE:Factory/ghc-intervals (Old) and /work/SRC/openSUSE:Factory/.ghc-intervals.new (New) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Package is "ghc-intervals" Thu Aug 31 20:47:59 2017 rev:2 rq:513404 version:0.8 Changes: -------- --- /work/SRC/openSUSE:Factory/ghc-intervals/ghc-intervals.changes 2017-04-11 12:45:12.302239300 +0200 +++ /work/SRC/openSUSE:Factory/.ghc-intervals.new/ghc-intervals.changes 2017-08-31 20:48:00.898603056 +0200 @@ -1,0 +2,5 @@ +Thu Jul 27 14:06:27 UTC 2017 - [email protected] + +- Update to version 0.8. + +------------------------------------------------------------------- Old: ---- intervals-0.7.2.tar.gz New: ---- intervals-0.8.tar.gz ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Other differences: ------------------ ++++++ ghc-intervals.spec ++++++ --- /var/tmp/diff_new_pack.eFo14h/_old 2017-08-31 20:48:01.802476183 +0200 +++ /var/tmp/diff_new_pack.eFo14h/_new 2017-08-31 20:48:01.802476183 +0200 @@ -17,8 +17,9 @@ %global pkg_name intervals +%bcond_with tests Name: ghc-%{pkg_name} -Version: 0.7.2 +Version: 0.8 Release: 0 Summary: Interval Arithmetic License: BSD-2-Clause @@ -27,9 +28,17 @@ Source0: https://hackage.haskell.org/package/%{pkg_name}-%{version}/%{pkg_name}-%{version}.tar.gz BuildRequires: ghc-Cabal-devel BuildRequires: ghc-array-devel +BuildRequires: ghc-cabal-doctest-devel BuildRequires: ghc-distributive-devel BuildRequires: ghc-rpm-macros BuildRoot: %{_tmppath}/%{name}-%{version}-build +%if %{with tests} +BuildRequires: ghc-QuickCheck-devel +BuildRequires: ghc-directory-devel +BuildRequires: ghc-doctest-devel +BuildRequires: ghc-filepath-devel +BuildRequires: ghc-template-haskell-devel +%endif %description A 'Numeric.Interval.Interval' is a closed, convex set of floating point values. @@ -59,6 +68,9 @@ %install %ghc_lib_install +%check +%cabal_test + %post devel %ghc_pkg_recache ++++++ intervals-0.7.2.tar.gz -> intervals-0.8.tar.gz ++++++ diff -urN '--exclude=CVS' '--exclude=.cvsignore' '--exclude=.svn' '--exclude=.svnignore' old/intervals-0.7.2/.travis.yml new/intervals-0.8/.travis.yml --- old/intervals-0.7.2/.travis.yml 2016-01-17 06:13:04.000000000 +0100 +++ new/intervals-0.8/.travis.yml 2017-04-28 04:15:56.000000000 +0200 @@ -1 +1,121 @@ -language: haskell +# This file has been generated -- see https://github.com/hvr/multi-ghc-travis +language: c +sudo: false + +cache: + directories: + - $HOME/.cabsnap + - $HOME/.cabal/packages + +before_cache: + - rm -fv $HOME/.cabal/packages/hackage.haskell.org/build-reports.log + - rm -fv $HOME/.cabal/packages/hackage.haskell.org/00-index.tar + +matrix: + include: + - env: CABALVER=1.18 GHCVER=7.0.4 + compiler: ": #GHC 7.0.4" + addons: {apt: {packages: [cabal-install-1.18,ghc-7.0.4], sources: [hvr-ghc]}} + - env: CABALVER=1.18 GHCVER=7.2.2 + compiler: ": #GHC 7.2.2" + addons: {apt: {packages: [cabal-install-1.18,ghc-7.2.2], sources: [hvr-ghc]}} + - env: CABALVER=1.18 GHCVER=7.4.2 + compiler: ": #GHC 7.4.2" + addons: {apt: {packages: [cabal-install-1.18,ghc-7.4.2], sources: [hvr-ghc]}} + - env: CABALVER=1.18 GHCVER=7.6.3 + compiler: ": #GHC 7.6.3" + addons: {apt: {packages: [cabal-install-1.18,ghc-7.6.3], sources: [hvr-ghc]}} + - env: CABALVER=1.18 GHCVER=7.8.4 + compiler: ": #GHC 7.8.4" + addons: {apt: {packages: [cabal-install-1.18,ghc-7.8.4], sources: [hvr-ghc]}} + - env: CABALVER=1.24 GHCVER=7.10.3 + compiler: ": #GHC 7.10.3" + addons: {apt: {packages: [cabal-install-1.24,ghc-7.10.3], sources: [hvr-ghc]}} + - env: CABALVER=1.24 GHCVER=8.0.2 + compiler: ": #GHC 8.0.2" + addons: {apt: {packages: [cabal-install-1.24,ghc-8.0.2], sources: [hvr-ghc]}} + - env: CABALVER=1.24 GHCVER=8.2.1 + compiler: ": #GHC 8.2.1" + addons: {apt: {packages: [cabal-install-1.24,ghc-8.2.1], sources: [hvr-ghc]}} + - env: CABALVER=1.24 GHCVER=head + compiler: ": #GHC head" + addons: {apt: {packages: [cabal-install-1.24,ghc-head], sources: [hvr-ghc]}} + + allow_failures: + - env: CABALVER=1.18 GHCVER=7.0.4 + - env: CABALVER=1.18 GHCVER=7.2.2 + - env: CABALVER=1.24 GHCVER=head + +before_install: + - unset CC + - export PATH=/opt/ghc/$GHCVER/bin:/opt/cabal/$CABALVER/bin:$PATH + +install: + - cabal --version + - echo "$(ghc --version) [$(ghc --print-project-git-commit-id 2> /dev/null || echo '?')]" + - if [ -f $HOME/.cabal/packages/hackage.haskell.org/00-index.tar.gz ]; + then + zcat $HOME/.cabal/packages/hackage.haskell.org/00-index.tar.gz > + $HOME/.cabal/packages/hackage.haskell.org/00-index.tar; + fi + - travis_retry cabal update -v + - sed -i 's/^jobs:/-- jobs:/' ${HOME}/.cabal/config + - cabal install --only-dependencies --enable-tests --dry -v > installplan.txt + - sed -i -e '1,/^Resolving /d' installplan.txt; cat installplan.txt + +# check whether current requested install-plan matches cached package-db snapshot + - if diff -u installplan.txt $HOME/.cabsnap/installplan.txt; + then + echo "cabal build-cache HIT"; + rm -rfv .ghc; + cp -a $HOME/.cabsnap/ghc $HOME/.ghc; + cp -a $HOME/.cabsnap/lib $HOME/.cabsnap/share $HOME/.cabsnap/bin $HOME/.cabal/; + else + echo "cabal build-cache MISS"; + rm -rf $HOME/.cabsnap; + mkdir -p $HOME/.ghc $HOME/.cabal/lib $HOME/.cabal/share $HOME/.cabal/bin; + cabal install -j --only-dependencies --enable-tests; + fi + +# snapshot package-db on cache miss + - if [ ! -d $HOME/.cabsnap ]; + then + echo "snapshotting package-db to build-cache"; + mkdir $HOME/.cabsnap; + cp -a $HOME/.ghc $HOME/.cabsnap/ghc; + cp -a $HOME/.cabal/lib $HOME/.cabal/share $HOME/.cabal/bin installplan.txt $HOME/.cabsnap/; + fi + +# Here starts the actual work to be performed for the package under +# test; any command which exits with a non-zero exit code causes the +# build to fail. +script: + # -v2 provides useful information for debugging + - cabal configure --enable-tests -v2 + + # this builds all libraries and executables + # (including tests/benchmarks) + - cabal build + + # tests that a source-distribution can be generated + - cabal sdist + + # check that the generated source-distribution can be built & installed + - export SRC_TGZ=$(cabal info . | awk '{print $2 ".tar.gz";exit}') ; + cd dist/; + if [ -f "$SRC_TGZ" ]; then + cabal install --force-reinstalls "$SRC_TGZ"; + else + echo "expected '$SRC_TGZ' not found"; + exit 1; + fi + +notifications: + irc: + channels: + - "irc.freenode.org#haskell-lens" + skip_join: true + template: + - "\x0313intervals\x03/\x0306%{branch}\x03 \x0314%{commit}\x03 %{build_url} %{message}" + +# EOF diff -urN '--exclude=CVS' '--exclude=.cvsignore' '--exclude=.svn' '--exclude=.svnignore' old/intervals-0.7.2/CHANGELOG.markdown new/intervals-0.8/CHANGELOG.markdown --- old/intervals-0.7.2/CHANGELOG.markdown 2016-01-17 06:13:04.000000000 +0100 +++ new/intervals-0.8/CHANGELOG.markdown 2017-04-28 04:15:56.000000000 +0200 @@ -1,3 +1,13 @@ +0.8 +--- +* `Eq` and `Ord` instances are now structural +* Deprecate `elem` and `notElem` in favor of `member` and `nonMember` +* Add `iquot`, `irem`, `idiv`, and `imod` functions +* Relax `Fractional` constraint in `deflate` to `Num` +* Revamp `Setup.hs` to use `cabal-doctest`. This makes it build + with `Cabal-2.0`, and makes the `doctest`s work with `cabal new-build` and + sandboxes. + 0.7.2 ----- * Redundant constraint cleanup diff -urN '--exclude=CVS' '--exclude=.cvsignore' '--exclude=.svn' '--exclude=.svnignore' old/intervals-0.7.2/README.markdown new/intervals-0.8/README.markdown --- old/intervals-0.7.2/README.markdown 2016-01-17 06:13:04.000000000 +0100 +++ new/intervals-0.8/README.markdown 2017-04-28 04:15:56.000000000 +0200 @@ -1,7 +1,7 @@ intervals ========== -[](https://hackage.haskell.org/package/intervals) [](http://travis-ci.org/ekmett/intervals) +[](https://hackage.haskell.org/package/intervals) [](http://travis-ci.org/ekmett/intervals) Basic interval arithmetic diff -urN '--exclude=CVS' '--exclude=.cvsignore' '--exclude=.svn' '--exclude=.svnignore' old/intervals-0.7.2/Setup.lhs new/intervals-0.8/Setup.lhs --- old/intervals-0.7.2/Setup.lhs 2016-01-17 06:13:04.000000000 +0100 +++ new/intervals-0.8/Setup.lhs 2017-04-28 04:15:56.000000000 +0200 @@ -1,55 +1,182 @@ -#!/usr/bin/runhaskell \begin{code} -{-# OPTIONS_GHC -Wall #-} +{-# LANGUAGE CPP #-} +{-# LANGUAGE OverloadedStrings #-} module Main (main) where +#ifndef MIN_VERSION_cabal_doctest +#define MIN_VERSION_cabal_doctest(x,y,z) 0 +#endif + + +#if MIN_VERSION_cabal_doctest(1,0,0) +import Distribution.Extra.Doctest ( defaultMainWithDoctests ) +#else + +-- Otherwise we provide a shim + +#ifndef MIN_VERSION_Cabal +#define MIN_VERSION_Cabal(x,y,z) 0 +#endif +#ifndef MIN_VERSION_directory +#define MIN_VERSION_directory(x,y,z) 0 +#endif +#if MIN_VERSION_Cabal(1,24,0) +#define InstalledPackageId UnitId +#endif + +import Control.Monad ( when ) import Data.List ( nub ) -import Data.Version ( showVersion ) -import Distribution.Package ( PackageName(PackageName), Package, PackageId, InstalledPackageId, packageVersion, packageName ) -import Distribution.PackageDescription ( PackageDescription(), TestSuite(..) ) +import Data.String ( fromString ) +import Distribution.Package ( InstalledPackageId ) +import Distribution.Package ( PackageId, Package (..), packageVersion ) +import Distribution.PackageDescription ( PackageDescription(), TestSuite(..) , Library (..), BuildInfo (..)) import Distribution.Simple ( defaultMainWithHooks, UserHooks(..), simpleUserHooks ) -import Distribution.Simple.Utils ( rewriteFile, createDirectoryIfMissingVerbose, copyFiles ) +import Distribution.Simple.Utils ( rewriteFile, createDirectoryIfMissingVerbose ) import Distribution.Simple.BuildPaths ( autogenModulesDir ) -import Distribution.Simple.Setup ( BuildFlags(buildVerbosity), Flag(..), fromFlag, HaddockFlags(haddockDistPref)) -import Distribution.Simple.LocalBuildInfo ( withLibLBI, withTestLBI, LocalBuildInfo(), ComponentLocalBuildInfo(componentPackageDeps) ) -import Distribution.Text ( display ) -import Distribution.Verbosity ( Verbosity, normal ) +import Distribution.Simple.Setup ( BuildFlags(buildDistPref, buildVerbosity), fromFlag) +import Distribution.Simple.LocalBuildInfo ( withPackageDB, withLibLBI, withTestLBI, LocalBuildInfo(), ComponentLocalBuildInfo(componentPackageDeps), compiler ) +import Distribution.Simple.Compiler ( showCompilerId , PackageDB (..)) +import Distribution.Text ( display , simpleParse ) import System.FilePath ( (</>) ) -main :: IO () -main = defaultMainWithHooks simpleUserHooks - { buildHook = \pkg lbi hooks flags -> do - generateBuildModule (fromFlag (buildVerbosity flags)) pkg lbi - buildHook simpleUserHooks pkg lbi hooks flags - , postHaddock = \args flags pkg lbi -> do - copyFiles normal (haddockOutputDir flags pkg) [] - postHaddock simpleUserHooks args flags pkg lbi - } - -haddockOutputDir :: Package p => HaddockFlags -> p -> FilePath -haddockOutputDir flags pkg = destDir where - baseDir = case haddockDistPref flags of - NoFlag -> "." - Flag x -> x - destDir = baseDir </> "doc" </> "html" </> display (packageName pkg) - -generateBuildModule :: Verbosity -> PackageDescription -> LocalBuildInfo -> IO () -generateBuildModule verbosity pkg lbi = do - let dir = autogenModulesDir lbi - createDirectoryIfMissingVerbose verbosity True dir - withLibLBI pkg lbi $ \_ libcfg -> do - withTestLBI pkg lbi $ \suite suitecfg -> do - rewriteFile (dir </> "Build_" ++ testName suite ++ ".hs") $ unlines - [ "module Build_" ++ testName suite ++ " where" - , "deps :: [String]" - , "deps = " ++ (show $ formatdeps (testDeps libcfg suitecfg)) +#if MIN_VERSION_Cabal(1,25,0) +import Distribution.Simple.BuildPaths ( autogenComponentModulesDir ) +#endif + +#if MIN_VERSION_directory(1,2,2) +import System.Directory (makeAbsolute) +#else +import System.Directory (getCurrentDirectory) +import System.FilePath (isAbsolute) + +makeAbsolute :: FilePath -> IO FilePath +makeAbsolute p | isAbsolute p = return p + | otherwise = do + cwd <- getCurrentDirectory + return $ cwd </> p +#endif + +generateBuildModule :: String -> BuildFlags -> PackageDescription -> LocalBuildInfo -> IO () +generateBuildModule testsuiteName flags pkg lbi = do + let verbosity = fromFlag (buildVerbosity flags) + let distPref = fromFlag (buildDistPref flags) + + -- Package DBs + let dbStack = withPackageDB lbi ++ [ SpecificPackageDB $ distPref </> "package.conf.inplace" ] + let dbFlags = "-hide-all-packages" : packageDbArgs dbStack + + withLibLBI pkg lbi $ \lib libcfg -> do + let libBI = libBuildInfo lib + + -- modules + let modules = exposedModules lib ++ otherModules libBI + -- it seems that doctest is happy to take in module names, not actual files! + let module_sources = modules + + -- We need the directory with library's cabal_macros.h! +#if MIN_VERSION_Cabal(1,25,0) + let libAutogenDir = autogenComponentModulesDir lbi libcfg +#else + let libAutogenDir = autogenModulesDir lbi +#endif + + -- Lib sources and includes + iArgs <- mapM (fmap ("-i"++) . makeAbsolute) $ libAutogenDir : hsSourceDirs libBI + includeArgs <- mapM (fmap ("-I"++) . makeAbsolute) $ includeDirs libBI + + -- CPP includes, i.e. include cabal_macros.h + let cppFlags = map ("-optP"++) $ + [ "-include", libAutogenDir ++ "/cabal_macros.h" ] + ++ cppOptions libBI + + withTestLBI pkg lbi $ \suite suitecfg -> when (testName suite == fromString testsuiteName) $ do + + -- get and create autogen dir +#if MIN_VERSION_Cabal(1,25,0) + let testAutogenDir = autogenComponentModulesDir lbi suitecfg +#else + let testAutogenDir = autogenModulesDir lbi +#endif + createDirectoryIfMissingVerbose verbosity True testAutogenDir + + -- write autogen'd file + rewriteFile (testAutogenDir </> "Build_doctests.hs") $ unlines + [ "module Build_doctests where" + , "" + -- -package-id etc. flags + , "pkgs :: [String]" + , "pkgs = " ++ (show $ formatDeps $ testDeps libcfg suitecfg) + , "" + , "flags :: [String]" + , "flags = " ++ show (iArgs ++ includeArgs ++ dbFlags ++ cppFlags) + , "" + , "module_sources :: [String]" + , "module_sources = " ++ show (map display module_sources) ] where - formatdeps = map (formatone . snd) - formatone p = case packageName p of - PackageName n -> n ++ "-" ++ showVersion (packageVersion p) + -- we do this check in Setup, as then doctests don't need to depend on Cabal + isOldCompiler = maybe False id $ do + a <- simpleParse $ showCompilerId $ compiler lbi + b <- simpleParse "7.5" + return $ packageVersion (a :: PackageId) < b + + formatDeps = map formatOne + formatOne (installedPkgId, pkgId) + -- The problem is how different cabal executables handle package databases + -- when doctests depend on the library + | packageId pkg == pkgId = "-package=" ++ display pkgId + | otherwise = "-package-id=" ++ display installedPkgId + + -- From Distribution.Simple.Program.GHC + packageDbArgs :: [PackageDB] -> [String] + packageDbArgs | isOldCompiler = packageDbArgsConf + | otherwise = packageDbArgsDb + + -- GHC <7.6 uses '-package-conf' instead of '-package-db'. + packageDbArgsConf :: [PackageDB] -> [String] + packageDbArgsConf dbstack = case dbstack of + (GlobalPackageDB:UserPackageDB:dbs) -> concatMap specific dbs + (GlobalPackageDB:dbs) -> ("-no-user-package-conf") + : concatMap specific dbs + _ -> ierror + where + specific (SpecificPackageDB db) = [ "-package-conf=" ++ db ] + specific _ = ierror + ierror = error $ "internal error: unexpected package db stack: " + ++ show dbstack + + -- GHC >= 7.6 uses the '-package-db' flag. See + -- https://ghc.haskell.org/trac/ghc/ticket/5977. + packageDbArgsDb :: [PackageDB] -> [String] + -- special cases to make arguments prettier in common scenarios + packageDbArgsDb dbstack = case dbstack of + (GlobalPackageDB:UserPackageDB:dbs) + | all isSpecific dbs -> concatMap single dbs + (GlobalPackageDB:dbs) + | all isSpecific dbs -> "-no-user-package-db" + : concatMap single dbs + dbs -> "-clear-package-db" + : concatMap single dbs + where + single (SpecificPackageDB db) = [ "-package-db=" ++ db ] + single GlobalPackageDB = [ "-global-package-db" ] + single UserPackageDB = [ "-user-package-db" ] + isSpecific (SpecificPackageDB _) = True + isSpecific _ = False testDeps :: ComponentLocalBuildInfo -> ComponentLocalBuildInfo -> [(InstalledPackageId, PackageId)] testDeps xs ys = nub $ componentPackageDeps xs ++ componentPackageDeps ys +defaultMainWithDoctests :: String -> IO () +defaultMainWithDoctests testSuiteName = defaultMainWithHooks simpleUserHooks + { buildHook = \pkg lbi hooks flags -> do + generateBuildModule testSuiteName flags pkg lbi + buildHook simpleUserHooks pkg lbi hooks flags + } + +#endif + +main :: IO () +main = defaultMainWithDoctests "doctests" + \end{code} diff -urN '--exclude=CVS' '--exclude=.cvsignore' '--exclude=.svn' '--exclude=.svnignore' old/intervals-0.7.2/intervals.cabal new/intervals-0.8/intervals.cabal --- old/intervals-0.7.2/intervals.cabal 2016-01-17 06:13:04.000000000 +0100 +++ new/intervals-0.8/intervals.cabal 2017-04-28 04:15:56.000000000 +0200 @@ -1,5 +1,5 @@ name: intervals -version: 0.7.2 +version: 0.8 synopsis: Interval Arithmetic description: A 'Numeric.Interval.Interval' is a closed, convex set of floating point values. @@ -17,7 +17,7 @@ category: Math build-type: Custom cabal-version: >=1.8 -tested-with: GHC == 7.4.2, GHC == 7.6.1, GHC == 7.6.3, GHC == 7.8.4, GHC == 7.10, GHC == 8.0.1 +tested-with: GHC == 7.4.2, GHC == 7.6.1, GHC == 7.6.3, GHC == 7.8.4, GHC == 7.10.3, GHC == 8.0.2, GHC == 8.2.1 extra-source-files: .travis.yml CHANGELOG.markdown @@ -28,6 +28,12 @@ type: git location: git://github.com/ekmett/intervals.git +custom-setup + setup-depends: + base >= 4 && <5, + Cabal, + cabal-doctest >= 1 && <1.1 + -- You can disable the doctests test suite with -f-test-doctests flag test-doctests description: Enable (or disable via f-test-doctests) the doctest suite when @@ -72,13 +78,13 @@ ghc-options: -Wall -threaded hs-source-dirs: tests - if !flag(test-doctests) || impl(ghc >= 8) + if !flag(test-doctests) buildable: False else build-depends: base, directory >= 1.0, - doctest >= 0.9.1, + doctest >= 0.11.1 && <0.12, filepath, QuickCheck, template-haskell diff -urN '--exclude=CVS' '--exclude=.cvsignore' '--exclude=.svn' '--exclude=.svnignore' old/intervals-0.7.2/src/Numeric/Interval/Internal.hs new/intervals-0.8/src/Numeric/Interval/Internal.hs --- old/intervals-0.7.2/src/Numeric/Interval/Internal.hs 2016-01-17 06:13:04.000000000 +0100 +++ new/intervals-0.8/src/Numeric/Interval/Internal.hs 2017-04-28 04:15:56.000000000 +0200 @@ -26,6 +26,8 @@ , empty , null , singleton + , member + , notMember , elem , notElem , inf @@ -48,6 +50,10 @@ , possibly, (<?), (<=?), (==?), (>=?), (>?) , idouble , ifloat + , iquot + , irem + , idiv + , imod ) where import Control.Exception as Exception @@ -68,7 +74,8 @@ -- $setup data Interval a = I !a !a | Empty deriving - ( Data + ( Eq, Ord + , Data , Typeable #if __GLASGOW_HASKELL__ >= 704 , Generic @@ -191,10 +198,6 @@ singular (I a b) = a == b {-# INLINE singular #-} -instance Eq a => Eq (Interval a) where - (==) = (==!) - {-# INLINE (==) #-} - instance Show a => Show (Interval a) where showsPrec _ Empty = showString "Empty" showsPrec n (I a b) = @@ -295,7 +298,7 @@ -- -- >>> deflate 1.0 empty -- Empty -deflate :: (Fractional a, Ord a) => a -> Interval a -> Interval a +deflate :: (Num a, Ord a) => a -> Interval a -> Interval a deflate _ Empty = Empty deflate x (I a b) | a' <= b' = I a' b' | otherwise = Empty @@ -400,6 +403,44 @@ -- | Determine if a point is in the interval. -- +-- >>> member 3.2 (1.0 ... 5.0) +-- True +-- +-- >>> member 5 (1.0 ... 5.0) +-- True +-- +-- >>> member 1 (1.0 ... 5.0) +-- True +-- +-- >>> member 8 (1.0 ... 5.0) +-- False +-- +-- >>> member 5 empty +-- False +-- +member :: Ord a => a -> Interval a -> Bool +member x (I a b) = x >= a && x <= b +member _ Empty = False +{-# INLINE member #-} + +-- | Determine if a point is not included in the interval +-- +-- >>> notMember 8 (1.0 ... 5.0) +-- True +-- +-- >>> notMember 1.4 (1.0 ... 5.0) +-- False +-- +-- And of course, nothing is a member of the empty interval. +-- +-- >>> notMember 5 empty +-- True +notMember :: Ord a => a -> Interval a -> Bool +notMember x xs = not (member x xs) +{-# INLINE notMember #-} + +-- | Determine if a point is in the interval. +-- -- >>> elem 3.2 (1.0 ... 5.0) -- True -- @@ -416,9 +457,9 @@ -- False -- elem :: Ord a => a -> Interval a -> Bool -elem x (I a b) = x >= a && x <= b -elem _ Empty = False +elem = member {-# INLINE elem #-} +{-# DEPRECATED elem "Use `member` instead." #-} -- | Determine if a point is not included in the interval -- @@ -433,8 +474,9 @@ -- >>> notElem 5 empty -- True notElem :: Ord a => a -> Interval a -> Bool -notElem x xs = not (elem x xs) +notElem = notMember {-# INLINE notElem #-} +{-# DEPRECATED notElem "Use `notMember` instead." #-} -- | 'realToFrac' will use the midpoint instance Real a => Real (Interval a) where @@ -444,27 +486,6 @@ b = toRational rb {-# INLINE toRational #-} -instance Ord a => Ord (Interval a) where - compare Empty Empty = EQ - compare Empty _ = LT - compare _ Empty = GT - compare (I ax bx) (I ay by) - | bx < ay = LT - | ax > by = GT - | bx == ay && ax == by = EQ - | otherwise = Exception.throw AmbiguousComparison - {-# INLINE compare #-} - - max (I a b) (I a' b') = max a a' ... max b b' - max Empty i = i - max i Empty = i - {-# INLINE max #-} - - min (I a b) (I a' b') = min a a' ... min b b' - min Empty _ = Empty - min _ Empty = Empty - {-# INLINE min #-} - -- @'divNonZero' X Y@ assumes @0 `'notElem'` Y@ divNonZero :: (Fractional a, Ord a) => Interval a -> Interval a -> Interval a divNonZero (I a b) (I a' b') = @@ -886,3 +907,58 @@ -- sin 1 :: Interval Double default (Integer,Double) + +-- | an interval containing all x `quot` y +-- >>> (5 `quot` 3) `member` ((4...6) `iquot` (2...4)) +-- True +-- >>> (1...10) `iquot` ((-5)...4) +-- *** Exception: divide by zero +iquot :: Integral a => Interval a -> Interval a -> Interval a +iquot i j = case (i,j) of + (Empty,_) -> Empty + (_,Empty) -> Empty + (I l u , I l' u') -> + if l' <= 0 && 0 <= u' then throw DivideByZero else I + (minimum [a `quot` b | a <- [l,u], b <- [l',u']]) + (maximum [a `quot` b | a <- [l,u], b <- [l',u']]) + +-- | an interval containing all x `rem` y +-- >>> (5 `rem` 3) `member` ((4...6) `irem` (2...4)) +-- True +-- >>> (1...10) `irem` ((-5)...4) +-- *** Exception: divide by zero +irem :: Integral a => Interval a -> Interval a -> Interval a +irem i j = case (i,j) of + (Empty,_) -> Empty + (_,Empty) -> Empty + (I l u , I l' u') -> + if l' <= 0 && 0 <= u' then throw DivideByZero else I + (minimum [0, signum l * (abs u' - 1), signum l * (abs l' - 1)]) + (maximum [0, signum u * (abs u' - 1), signum u * (abs l' - 1)]) + +-- | an interval containing all x `div` y +-- >>> (5 `div` 3) `member` ((4...6) `idiv` (2...4)) +-- True +-- >>> (1...10) `idiv` ((-5)...4) +-- *** Exception: divide by zero +idiv :: Integral a => Interval a -> Interval a -> Interval a +idiv i j = case (i,j) of + (Empty,_) -> Empty + (_,Empty) -> Empty + (I l u , I l' u') -> + if l' <= 0 && 0 <= u' then throw DivideByZero else I + (min (l `Prelude.div` max 1 l') (u `Prelude.div` min (-1) u')) + (max (u `Prelude.div` max 1 l') (l `Prelude.div` min (-1) u')) + +-- | an interval containing all x `mod` y +-- >>> (5 `mod` 3) `member` ((4...6) `imod` (2...4)) +-- True +-- >>> (1...10) `imod` ((-5)...4) +-- *** Exception: divide by zero +imod :: Integral a => Interval a -> Interval a -> Interval a +imod i j = case (i,j) of + (Empty,_) -> Empty + (_,Empty) -> Empty + (_ , I l' u') -> + if l' <= 0 && 0 <= u' then throw DivideByZero else + I (min (l'+1) 0) (max 0 (u'-1)) diff -urN '--exclude=CVS' '--exclude=.cvsignore' '--exclude=.svn' '--exclude=.svnignore' old/intervals-0.7.2/src/Numeric/Interval/Kaucher.hs new/intervals-0.8/src/Numeric/Interval/Kaucher.hs --- old/intervals-0.7.2/src/Numeric/Interval/Kaucher.hs 2016-01-17 06:13:04.000000000 +0100 +++ new/intervals-0.8/src/Numeric/Interval/Kaucher.hs 2017-04-28 04:15:56.000000000 +0200 @@ -13,7 +13,7 @@ -- Stability : experimental -- Portability : DeriveDataTypeable -- --- "Directed" Interval arithmetic +-- \"Directed\" Interval arithmetic -- ----------------------------------------------------------------------------- @@ -25,6 +25,8 @@ , empty , null , singleton + , member + , notMember , elem , notElem , inf @@ -47,6 +49,10 @@ , clamp , idouble , ifloat + , iquot + , irem + , idiv + , imod ) where import Control.Applicative hiding (empty) @@ -70,7 +76,8 @@ -- $setup data Interval a = I !a !a deriving - ( Data + ( Eq, Ord + , Data , Typeable #if __GLASGOW_HASKELL__ >= 704 , Generic @@ -207,10 +214,6 @@ singular x = not (null x) && inf x == sup x {-# INLINE singular #-} -instance Eq a => Eq (Interval a) where - (==) = (==!) - {-# INLINE (==) #-} - instance Show a => Show (Interval a) where showsPrec n (I a b) = showParen (n > 3) $ @@ -379,6 +382,43 @@ -- | Determine if a point is in the interval. -- +-- >>> member 3.2 (1.0 ... 5.0) +-- True +-- +-- >>> member 5 (1.0 ... 5.0) +-- True +-- +-- >>> member 1 (1.0 ... 5.0) +-- True +-- +-- >>> member 8 (1.0 ... 5.0) +-- False +-- +-- >>> member 5 empty +-- False +-- +member :: Ord a => a -> Interval a -> Bool +member x (I a b) = x >= a && x <= b +{-# INLINE member #-} + +-- | Determine if a point is not included in the interval +-- +-- >>> notMember 8 (1.0 ... 5.0) +-- True +-- +-- >>> notMember 1.4 (1.0 ... 5.0) +-- False +-- +-- And of course, nothing is a member of the empty interval. +-- +-- >>> notMember 5 empty +-- True +notMember :: Ord a => a -> Interval a -> Bool +notMember x xs = not (member x xs) +{-# INLINE notMember #-} + +-- | Determine if a point is in the interval. +-- -- >>> elem 3.2 (1.0 ... 5.0) -- True -- @@ -395,8 +435,9 @@ -- False -- elem :: Ord a => a -> Interval a -> Bool -elem x xs = x >= inf xs && x <= sup xs +elem = member {-# INLINE elem #-} +{-# DEPRECATED elem "Use `member` instead." #-} -- | Determine if a point is not included in the interval -- @@ -411,8 +452,9 @@ -- >>> notElem 5 empty -- True notElem :: Ord a => a -> Interval a -> Bool -notElem x xs = not (elem x xs) +notElem = notMember {-# INLINE notElem #-} +{-# DEPRECATED notElem "Use `notMember` instead." #-} -- | 'realToFrac' will use the midpoint instance Real a => Real (Interval a) where @@ -424,20 +466,6 @@ b = toRational (sup x) {-# INLINE toRational #-} -instance Ord a => Ord (Interval a) where - compare x y - | sup x < inf y = LT - | inf x > sup y = GT - | sup x == inf y && inf x == sup y = EQ - | otherwise = Exception.throw AmbiguousComparison - {-# INLINE compare #-} - - max (I a b) (I a' b') = max a a' ... max b b' - {-# INLINE max #-} - - min (I a b) (I a' b') = min a a' ... min b b' - {-# INLINE min #-} - -- @'divNonZero' X Y@ assumes @0 `'notElem'` Y@ divNonZero :: (Fractional a, Ord a) => Interval a -> Interval a -> Interval a divNonZero (I a b) (I a' b') = @@ -829,3 +857,46 @@ default (Integer,Double) + +-- | an interval containing all x `quot` y +-- >>> (5 `quot` 3) `member` ((4...6) `iquot` (2...4)) +-- True +-- >>> (1...10) `iquot` ((-5)...4) +-- *** Exception: divide by zero +iquot :: Integral a => Interval a -> Interval a -> Interval a +iquot (I l u) (I l' u') = + if l' <= 0 && 0 <= u' then throw DivideByZero else I + (minimum [a `quot` b | a <- [l,u], b <- [l',u']]) + (maximum [a `quot` b | a <- [l,u], b <- [l',u']]) + +-- | an interval containing all x `rem` y +-- >>> (5 `rem` 3) `member` ((4...6) `irem` (2...4)) +-- True +-- >>> (1...10) `irem` ((-5)...4) +-- *** Exception: divide by zero +irem :: Integral a => Interval a -> Interval a -> Interval a +irem (I l u) (I l' u') = + if l' <= 0 && 0 <= u' then throw DivideByZero else I + (minimum [0, signum l * (abs u' - 1), signum l * (abs l' - 1)]) + (maximum [0, signum u * (abs u' - 1), signum u * (abs l' - 1)]) + +-- | an interval containing all x `div` y +-- >>> (5 `div` 3) `member` ((4...6) `idiv` (2...4)) +-- True +-- >>> (1...10) `idiv` ((-5)...4) +-- *** Exception: divide by zero +idiv :: Integral a => Interval a -> Interval a -> Interval a +idiv (I l u) (I l' u') = + if l' <= 0 && 0 <= u' then throw DivideByZero else I + (min (l `Prelude.div` max 1 l') (u `Prelude.div` min (-1) u')) + (max (u `Prelude.div` max 1 l') (l `Prelude.div` min (-1) u')) + +-- | an interval containing all x `mod` y +-- >>> (5 `mod` 3) `member` ((4...6) `imod` (2...4)) +-- True +-- >>> (1...10) `imod` ((-5)...4) +-- *** Exception: divide by zero +imod :: Integral a => Interval a -> Interval a -> Interval a +imod _ (I l' u') = + if l' <= 0 && 0 <= u' then throw DivideByZero else + I (min (l'+1) 0) (max 0 (u'-1)) diff -urN '--exclude=CVS' '--exclude=.cvsignore' '--exclude=.svn' '--exclude=.svnignore' old/intervals-0.7.2/src/Numeric/Interval/NonEmpty/Internal.hs new/intervals-0.8/src/Numeric/Interval/NonEmpty/Internal.hs --- old/intervals-0.7.2/src/Numeric/Interval/NonEmpty/Internal.hs 2016-01-17 06:13:04.000000000 +0100 +++ new/intervals-0.8/src/Numeric/Interval/NonEmpty/Internal.hs 2017-04-28 04:15:56.000000000 +0200 @@ -22,6 +22,8 @@ , interval , whole , singleton + , member + , notMember , elem , notElem , inf @@ -45,6 +47,10 @@ , scale, symmetric , idouble , ifloat + , iquot + , irem + , idiv + , imod ) where import Control.Exception as Exception @@ -66,15 +72,16 @@ -- >>> :set -XExtendedDefaultRules -- >>> default (Integer,Double) -- >>> instance (Ord a, Arbitrary a) => Arbitrary (Interval a) where arbitrary = (...) <$> arbitrary <*> arbitrary --- >>> let elementOf xs = sized $ \n -> case n of { 0 -> pure $ inf xs; 1 -> pure $ sup xs; _ -> choose (inf xs, sup xs); } --- >>> let conservative sf f xs = forAll (choose (inf xs, sup xs)) $ \x -> (sf x) `elem` (f xs) --- >>> let conservative2 sf f xs ys = forAll ((,) <$> choose (inf xs, sup xs) <*> choose (inf ys, sup ys)) $ \(x,y) -> (sf x y) `elem` (f xs ys) --- >>> let conservativeExceptNaN sf f xs = forAll (choose (inf xs, sup xs)) $ \x -> isNaN (sf x) || (sf x) `elem` (f xs) +-- >>> let memberOf xs = sized $ \n -> case n of { 0 -> pure $ inf xs; 1 -> pure $ sup xs; _ -> choose (inf xs, sup xs); } +-- >>> let conservative sf f xs = forAll (choose (inf xs, sup xs)) $ \x -> (sf x) `member` (f xs) +-- >>> let conservative2 sf f xs ys = forAll ((,) <$> choose (inf xs, sup xs) <*> choose (inf ys, sup ys)) $ \(x,y) -> (sf x y) `member` (f xs ys) +-- >>> let conservativeExceptNaN sf f xs = forAll (choose (inf xs, sup xs)) $ \x -> isNaN (sf x) || (sf x) `member` (f xs) -- >>> let compose2 = fmap . fmap -- >>> let commutative op a b = (a `op` b) == (b `op` a) data Interval a = I !a !a deriving - ( Data + ( Eq, Ord + , Data , Typeable #if __GLASGOW_HASKELL__ >= 704 , Generic @@ -194,10 +201,6 @@ singular (I a b) = a == b {-# INLINE singular #-} -instance Eq a => Eq (Interval a) where - (==) = (==!) - {-# INLINE (==) #-} - instance Show a => Show (Interval a) where showsPrec n (I a b) = showParen (n > 3) $ @@ -331,6 +334,34 @@ -- | Determine if a point is in the interval. -- +-- >>> member 3.2 (1.0 ... 5.0) +-- True +-- +-- >>> member 5 (1.0 ... 5.0) +-- True +-- +-- >>> member 1 (1.0 ... 5.0) +-- True +-- +-- >>> member 8 (1.0 ... 5.0) +-- False +member :: Ord a => a -> Interval a -> Bool +member x (I a b) = x >= a && x <= b +{-# INLINE member #-} + +-- | Determine if a point is not included in the interval +-- +-- >>> notMember 8 (1.0 ... 5.0) +-- True +-- +-- >>> notMember 1.4 (1.0 ... 5.0) +-- False +notMember :: Ord a => a -> Interval a -> Bool +notMember x xs = not (member x xs) +{-# INLINE notMember #-} + +-- | Determine if a point is in the interval. +-- -- >>> elem 3.2 (1.0 ... 5.0) -- True -- @@ -343,8 +374,9 @@ -- >>> elem 8 (1.0 ... 5.0) -- False elem :: Ord a => a -> Interval a -> Bool -elem x (I a b) = x >= a && x <= b +elem = member {-# INLINE elem #-} +{-# DEPRECATED elem "Use `member` instead." #-} -- | Determine if a point is not included in the interval -- @@ -354,8 +386,9 @@ -- >>> notElem 1.4 (1.0 ... 5.0) -- False notElem :: Ord a => a -> Interval a -> Bool -notElem x xs = not (elem x xs) +notElem = notMember {-# INLINE notElem #-} +{-# DEPRECATED notElem "Use `notMember` instead." #-} -- | 'realToFrac' will use the midpoint instance Real a => Real (Interval a) where @@ -364,20 +397,6 @@ b = toRational rb {-# INLINE toRational #-} -instance Ord a => Ord (Interval a) where - compare (I ax bx) (I ay by) - | bx < ay = LT - | ax > by = GT - | bx == ay && ax == by = EQ - | otherwise = Exception.throw AmbiguousComparison - {-# INLINE compare #-} - - max (I a b) (I a' b') = max a a' ... max b b' - {-# INLINE max #-} - - min (I a b) (I a' b') = min a a' ... min b b' - {-# INLINE min #-} - -- @'divNonZero' X Y@ assumes @0 `'notElem'` Y@ divNonZero :: (Fractional a, Ord a) => Interval a -> Interval a -> Interval a divNonZero (I a b) (I a' b') = @@ -822,3 +841,38 @@ -- sin 1 :: Interval Double default (Integer,Double) + +-- | an interval containing all x `quot` y +-- prop> forAll (memberOf xs) $ \ x -> forAll (memberOf ys) $ \ y -> 0 `notMember` ys ==> (x `quot` y) `member` (xs `iquot` ys) +-- prop> 0 `member` ys ==> ioProperty $ do z <- try (evaluate (xs `iquot` ys)); return $ z === Left DivideByZero +iquot :: Integral a => Interval a -> Interval a -> Interval a +iquot (I l u) (I l' u') = + if l' <= 0 && 0 <= u' then throw DivideByZero else I + (minimum [a `quot` b | a <- [l,u], b <- [l',u']]) + (maximum [a `quot` b | a <- [l,u], b <- [l',u']]) + +-- | an interval containing all x `rem` y +-- prop> forAll (memberOf xs) $ \ x -> forAll (memberOf ys) $ \ y -> 0 `notMember` ys ==> (x `rem` y) `member` (xs `irem` ys) +-- prop> 0 `member` ys ==> ioProperty $ do z <- try (evaluate (xs `irem` ys)); return $ z === Left DivideByZero +irem :: Integral a => Interval a -> Interval a -> Interval a +irem (I l u) (I l' u') = + if l' <= 0 && 0 <= u' then throw DivideByZero else I + (minimum [0, signum l * (abs u' - 1), signum l * (abs l' - 1)]) + (maximum [0, signum u * (abs u' - 1), signum u * (abs l' - 1)]) + +-- | an interval containing all x `div` y +-- prop> forAll (memberOf xs) $ \ x -> forAll (memberOf ys) $ \ y -> 0 `notMember` ys ==> (x `div` y) `member` (xs `idiv` ys) +-- prop> 0 `member` ys ==> ioProperty $ do z <- try (evaluate (xs `idiv` ys)); return $ z === Left DivideByZero +idiv :: Integral a => Interval a -> Interval a -> Interval a +idiv (I l u) (I l' u') = + if l' <= 0 && 0 <= u' then throw DivideByZero else I + (min (l `Prelude.div` max 1 l') (u `Prelude.div` min (-1) u')) + (max (u `Prelude.div` max 1 l') (l `Prelude.div` min (-1) u')) + +-- | an interval containing all x `mod` y +-- prop> forAll (memberOf xs) $ \ x -> forAll (memberOf ys) $ \ y -> 0 `notMember` ys ==> (x `mod` y) `member` (xs `imod` ys) +-- prop> 0 `member` ys ==> ioProperty $ do z <- try (evaluate (xs `imod` ys)); return $ z === Left DivideByZero +imod :: Integral a => Interval a -> Interval a -> Interval a +imod _ (I l' u') = + if l' <= 0 && 0 <= u' then throw DivideByZero else + I (min (l'+1) 0) (max 0 (u'-1)) diff -urN '--exclude=CVS' '--exclude=.cvsignore' '--exclude=.svn' '--exclude=.svnignore' old/intervals-0.7.2/src/Numeric/Interval/NonEmpty.hs new/intervals-0.8/src/Numeric/Interval/NonEmpty.hs --- old/intervals-0.7.2/src/Numeric/Interval/NonEmpty.hs 2016-01-17 06:13:04.000000000 +0100 +++ new/intervals-0.8/src/Numeric/Interval/NonEmpty.hs 2017-04-28 04:15:56.000000000 +0200 @@ -23,6 +23,8 @@ , interval , whole , singleton + , member + , notMember , elem , notElem , inf @@ -46,6 +48,10 @@ , scale, symmetric , idouble , ifloat + , iquot + , irem + , idiv + , imod ) where import Numeric.Interval.NonEmpty.Internal diff -urN '--exclude=CVS' '--exclude=.cvsignore' '--exclude=.svn' '--exclude=.svnignore' old/intervals-0.7.2/src/Numeric/Interval.hs new/intervals-0.8/src/Numeric/Interval.hs --- old/intervals-0.7.2/src/Numeric/Interval.hs 2016-01-17 06:13:04.000000000 +0100 +++ new/intervals-0.8/src/Numeric/Interval.hs 2017-04-28 04:15:56.000000000 +0200 @@ -18,6 +18,8 @@ , empty , null , singleton + , member + , notMember , elem , notElem , inf @@ -40,6 +42,10 @@ , possibly, (<?), (<=?), (==?), (>=?), (>?) , idouble , ifloat + , iquot + , irem + , idiv + , imod ) where import Numeric.Interval.Internal diff -urN '--exclude=CVS' '--exclude=.cvsignore' '--exclude=.svn' '--exclude=.svnignore' old/intervals-0.7.2/tests/doctests.hs new/intervals-0.8/tests/doctests.hs --- old/intervals-0.7.2/tests/doctests.hs 1970-01-01 01:00:00.000000000 +0100 +++ new/intervals-0.8/tests/doctests.hs 2017-04-28 04:15:56.000000000 +0200 @@ -0,0 +1,25 @@ +----------------------------------------------------------------------------- +-- | +-- Module : Main (doctests) +-- Copyright : (C) 2012-14 Edward Kmett +-- License : BSD-style (see the file LICENSE) +-- Maintainer : Edward Kmett <[email protected]> +-- Stability : provisional +-- Portability : portable +-- +-- This module provides doctests for a project based on the actual versions +-- of the packages it was built with. It requires a corresponding Setup.lhs +-- to be added to the project +----------------------------------------------------------------------------- +module Main where + +import Build_doctests (flags, pkgs, module_sources) +import Data.Foldable (traverse_) +import Test.DocTest + +main :: IO () +main = do + traverse_ putStrLn args + doctest args + where + args = flags ++ pkgs ++ module_sources diff -urN '--exclude=CVS' '--exclude=.cvsignore' '--exclude=.svn' '--exclude=.svnignore' old/intervals-0.7.2/tests/doctests.hsc new/intervals-0.8/tests/doctests.hsc --- old/intervals-0.7.2/tests/doctests.hsc 2016-01-17 06:13:04.000000000 +0100 +++ new/intervals-0.8/tests/doctests.hsc 1970-01-01 01:00:00.000000000 +0100 @@ -1,76 +0,0 @@ -{-# LANGUAGE CPP #-} -{-# LANGUAGE ForeignFunctionInterface #-} ------------------------------------------------------------------------------ --- | --- Module : Main (doctests) --- Copyright : (C) 2012-13 Edward Kmett --- License : BSD-style (see the file LICENSE) --- Maintainer : Edward Kmett <[email protected]> --- Stability : provisional --- Portability : portable --- --- This module provides doctests for a project based on the actual versions --- of the packages it was built with. It requires a corresponding Setup.lhs --- to be added to the project ------------------------------------------------------------------------------ -module Main where - -import Build_doctests (deps) -#if __GLASGOW_HASKELL__ < 710 -import Control.Applicative -#endif -import Control.Monad -import Data.List -import System.Directory -import System.FilePath -import Test.DocTest - -##if defined(mingw32_HOST_OS) -##if defined(i386_HOST_ARCH) -##define USE_CP -import Control.Applicative -import Control.Exception -import Foreign.C.Types -foreign import stdcall "windows.h SetConsoleCP" c_SetConsoleCP :: CUInt -> IO Bool -foreign import stdcall "windows.h GetConsoleCP" c_GetConsoleCP :: IO CUInt -##elif defined(x86_64_HOST_ARCH) -##define USE_CP -import Control.Applicative -import Control.Exception -import Foreign.C.Types -foreign import ccall "windows.h SetConsoleCP" c_SetConsoleCP :: CUInt -> IO Bool -foreign import ccall "windows.h GetConsoleCP" c_GetConsoleCP :: IO CUInt -##endif -##endif - --- | Run in a modified codepage where we can print UTF-8 values on Windows. -withUnicode :: IO a -> IO a -##ifdef USE_CP -withUnicode m = do - cp <- c_GetConsoleCP - (c_SetConsoleCP 65001 >> m) `finally` c_SetConsoleCP cp -##else -withUnicode m = m -##endif - -main :: IO () -main = withUnicode $ getSources >>= \sources -> doctest $ - "-isrc" - : "-idist/build/autogen" - : "-optP-include" - : "-optPdist/build/autogen/cabal_macros.h" - : "-packageQuickCheck" - : "-hide-all-packages" - : map ("-package="++) deps ++ sources - -getSources :: IO [FilePath] -getSources = filter (isSuffixOf ".hs") <$> go "src" - where - go dir = do - (dirs, files) <- getFilesAndDirectories dir - (files ++) . concat <$> mapM go dirs - -getFilesAndDirectories :: FilePath -> IO ([FilePath], [FilePath]) -getFilesAndDirectories dir = do - c <- map (dir </>) . filter (`notElem` ["..", "."]) <$> getDirectoryContents dir - (,) <$> filterM doesDirectoryExist c <*> filterM doesFileExist c
