double-conversion.cabal

cabal-version:  2.2
name:           double-conversion
version:        2.0.5.0
license:        BSD-2-Clause
license-file:   LICENSE
homepage:       https://github.com/haskell/double-conversion
bug-reports:    https://github.com/haskell/double-conversion/issues
category:       Text
author:         Bryan O'Sullivan <bos@serpentine.com>
maintainer:     Bryan O'Sullivan <bos@serpentine.com>
stability:      experimental
synopsis:       Fast conversion between single and double precision floating point and text
build-type:     Simple
tested-with:    GHC ==9.0.2 || ==9.2.8 || ==9.4.7 || ==9.6.2
description:
    A library that performs fast, accurate conversion between 
    floating point and text.
    .
    This library is implemented as bindings to the C++
    @double-conversion@ library written by Florian Loitsch at Google:
    <https://github.com/floitsch/double-conversion>.
    .
    Now it can convert single precision numbers, and also it can create 
    Builder, instead of bytestring or text. 
    .
    The 'Text' versions of these functions are about 30 times faster
    than the default 'show' implementation for the 'Double' type.
    .
    The 'ByteString' versions are have very close speed to the 'Text' versions;
    .
    Builder versions (both for Text and Bytestring) are slower on single value,
    but they are much faster on large number of values 
    (up to 20x faster on list with 20000 doubles).
    .
    As a final note, be aware that the @bytestring-show@ package is
    about 50% slower than simply using 'show'.

extra-source-files:
    README.markdown
    benchmarks/*.cabal
    benchmarks/*.hs
    double-conversion/*.cmake.in
    double-conversion/AUTHORS
    double-conversion/CMakeLists.txt
    double-conversion/COPYING
    double-conversion/Changelog
    double-conversion/LICENSE
    double-conversion/Makefile
    double-conversion/README
    double-conversion/SConstruct
    double-conversion/src/*.cc
    double-conversion/src/*.h
    double-conversion/src/CMakeLists.txt
    double-conversion/src/SConscript
    double-conversion/test/CMakeLists.txt
    double-conversion/test/cctest/*.cc
    double-conversion/test/cctest/*.h
    double-conversion/test/cctest/CMakeLists.txt
    double-conversion/test/cctest/SConscript
    include/*.h
    tests/*.hs

flag developer
  description: operate in developer mode
  default: False
  manual: True

flag embedded_double_conversion
  description: embed the C++ double_conversion library
  default: True

library
  if impl(ghc >= 9.4)
    build-depends: system-cxx-std-lib == 1.0

  elif os(darwin) || os(freebsd)
    extra-libraries: c++
  elif os(windows)
    if arch(x86_64) && impl(ghc < 8.6.5)
      extra-libraries: stdc++-6 gcc_s_seh-1
    elif arch(x86_64)
      extra-libraries: stdc++ gcc_s_seh-1
    elif impl(ghc >= 8.6.5)
      extra-libraries: stdc++ gcc_s_dw2-1
    else 
      extra-libraries: stdc++-6 gcc_s_dw2-1
  else
    extra-libraries: stdc++

  if flag(embedded_double_conversion)
    cxx-sources:
      cbits/hs-double-conversion-embed.cc

      double-conversion/src/bignum.cc
      double-conversion/src/bignum-dtoa.cc
      double-conversion/src/cached-powers.cc
      double-conversion/src/diy-fp.cc
      double-conversion/src/double-conversion.cc
      double-conversion/src/fast-dtoa.cc
      double-conversion/src/fixed-dtoa.cc
      double-conversion/src/strtod.cc
    include-dirs: double-conversion/src
  else
    extra-libraries: double-conversion
    cxx-sources:
      cbits/hs-double-conversion.cc

  include-dirs:
    include

  exposed-modules:
    Data.Double.Conversion.Convertable
    Data.Double.Conversion.ByteString
    Data.Double.Conversion.Text

  other-modules:
    Data.Double.Conversion.Internal.FFI
    Data.Double.Conversion.Internal.ByteString
    Data.Double.Conversion.Internal.ByteStringBuilder
    Data.Double.Conversion.Internal.Text
    Data.Double.Conversion.Internal.TextBuilder

  build-depends:
    base == 4.*,
    bytestring,
    ghc-prim,
    text >= 0.11.0.8

  if flag(developer)
    ghc-options: -Werror 
    ghc-prof-options: -auto-all
  else
    cc-options: -DNDEBUG 

  ghc-options: -Wall 

  default-language: Haskell2010

test-suite tests
  type: exitcode-stdio-1.0
  hs-source-dirs: tests
  main-is: Properties.hs
  other-modules: Regressions
  ghc-options: -Wall
  build-depends:
    HUnit,
    base,
    bytestring,
    double-conversion,
    test-framework,
    test-framework-hunit,
    test-framework-quickcheck2,
    text
  default-language: Haskell2010

source-repository head
  type:     git
  location: https://github.com/haskell/double-conversion