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OBS-URL: https://build.opensuse.org/package/show/devel:languages:haskell/ghc-scientific?expand=0&rev=55
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Peter Simons
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@ -26,6 +26,7 @@ License: BSD-3-Clause
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Group: Development/Libraries/Haskell
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URL: https://hackage.haskell.org/package/%{pkg_name}
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Source0: https://hackage.haskell.org/package/%{pkg_name}-%{version}/%{pkg_name}-%{version}.tar.gz
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Source1: https://hackage.haskell.org/package/%{pkg_name}-%{version}/revision/1.cabal#/%{pkg_name}.cabal
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BuildRequires: ghc-Cabal-devel
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BuildRequires: ghc-binary-devel
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BuildRequires: ghc-bytestring-devel
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@ -89,6 +90,7 @@ This package provides the Haskell %{pkg_name} library development files.
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%prep
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%setup -q -n %{pkg_name}-%{version}
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cp -p %{SOURCE1} %{pkg_name}.cabal
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%build
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%ghc_lib_build
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133
scientific.cabal
Normal file
133
scientific.cabal
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@ -0,0 +1,133 @@
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name: scientific
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version: 0.3.6.0
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x-revision: 1
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synopsis: Numbers represented using scientific notation
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description:
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"Data.Scientific" provides the number type 'Scientific'. Scientific numbers are
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arbitrary precision and space efficient. They are represented using
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<http://en.wikipedia.org/wiki/Scientific_notation scientific notation>.
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The implementation uses a coefficient @c :: 'Integer'@ and a base-10 exponent
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@e :: 'Int'@. A scientific number corresponds to the
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'Fractional' number: @'fromInteger' c * 10 '^^' e@.
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.
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Note that since we're using an 'Int' to represent the exponent these numbers
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aren't truly arbitrary precision. I intend to change the type of the exponent
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to 'Integer' in a future release.
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.
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The main application of 'Scientific' is to be used as the target of parsing
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arbitrary precision numbers coming from an untrusted source. The advantages
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over using 'Rational' for this are that:
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.
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* A 'Scientific' is more efficient to construct. Rational numbers need to be
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constructed using '%' which has to compute the 'gcd' of the 'numerator' and
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'denominator'.
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.
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* 'Scientific' is safe against numbers with huge exponents. For example:
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@1e1000000000 :: 'Rational'@ will fill up all space and crash your
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program. Scientific works as expected:
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.
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>>> read "1e1000000000" :: Scientific
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1.0e1000000000
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.
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* Also, the space usage of converting scientific numbers with huge exponents to
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@'Integral's@ (like: 'Int') or @'RealFloat's@ (like: 'Double' or 'Float')
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will always be bounded by the target type.
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homepage: https://github.com/basvandijk/scientific
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bug-reports: https://github.com/basvandijk/scientific/issues
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license: BSD3
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license-file: LICENSE
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author: Bas van Dijk
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maintainer: Bas van Dijk <v.dijk.bas@gmail.com>
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category: Data
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build-type: Simple
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cabal-version: >=1.10
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extra-source-files:
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changelog
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Tested-With: GHC == 7.6.3
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, GHC == 7.8.4
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, GHC == 7.10.3
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, GHC == 8.0.2
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, GHC == 8.2.2
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, GHC == 8.4.1
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source-repository head
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type: git
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location: git://github.com/basvandijk/scientific.git
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flag bytestring-builder
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description: Depend on the bytestring-builder package for backwards compatibility.
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default: False
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manual: False
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flag integer-simple
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description: Use the integer-simple package instead of integer-gmp
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default: False
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library
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exposed-modules: Data.ByteString.Builder.Scientific
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Data.Scientific
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Data.Text.Lazy.Builder.Scientific
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other-modules: GHC.Integer.Compat
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Utils
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other-extensions: DeriveDataTypeable, BangPatterns
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ghc-options: -Wall
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build-depends: base >= 4.8 && < 5
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, integer-logarithms >= 1
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, deepseq >= 1.3
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, text >= 0.8
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, hashable >= 1.1.2
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, primitive >= 0.1
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, containers >= 0.1
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, binary >= 0.4.1
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if flag(bytestring-builder)
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build-depends: bytestring >= 0.9 && < 0.10.4
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, bytestring-builder >= 0.10.4 && < 0.11
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else
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build-depends: bytestring >= 0.10.4
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if flag(integer-simple)
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build-depends: integer-simple
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else
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build-depends: integer-gmp
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hs-source-dirs: src
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default-language: Haskell2010
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test-suite test-scientific
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type: exitcode-stdio-1.0
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hs-source-dirs: test
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main-is: test.hs
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default-language: Haskell2010
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ghc-options: -Wall
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build-depends: scientific
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, base >= 4.3 && < 5
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, binary >= 0.4.1
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, tasty >= 0.5
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, tasty-ant-xml >= 1.0
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, tasty-hunit >= 0.8
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, tasty-smallcheck >= 0.2
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, tasty-quickcheck >= 0.8
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, smallcheck >= 1.0
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, QuickCheck >= 2.5
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, text >= 0.8
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if flag(bytestring-builder)
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build-depends: bytestring >= 0.9 && < 0.10.4
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, bytestring-builder >= 0.10.4 && < 0.11
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else
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build-depends: bytestring >= 0.10.4
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benchmark bench-scientific
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type: exitcode-stdio-1.0
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hs-source-dirs: bench
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main-is: bench.hs
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default-language: Haskell2010
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ghc-options: -O2
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build-depends: scientific
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, base >= 4.3 && < 5
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, criterion >= 0.5
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