name:                signed-multiset
version:             0.3
cabal-version:       >= 1.14
build-type:          Simple
license:             BSD3
license-file:        LICENSE
copyright:           (c) 2012 Stefan Holdermans
author:              Stefan Holdermans
maintainer:          stefan@vectorfabrics.com
stability:           provisional
bug-reports:         mailto:stefan@vectorfabrics.com
synopsis:            Multisets with negative membership.
description:
  Multisets (or bags) are sets in which elements may occur more than once.
  The number of times an element occurs in a multiset is called its
  /multiplicity/.
  .
  This package provides an efficient implementation of so-called
  /signed multisets/ (also known as hybrid sets or shadow sets), which
  generalise multisets by allowing for /negative membership/.
  That is, elements in a signed multiset can have negative multiplicities.
  .
  See also: Wayne D. Blizard. Negative membership.
  /Notre Dame Journal of Formal Logic/, 31(3):346--368, 1990.
category:            Data Structures
tested-with:         GHC == 7.4.1
extra-source-files:  AUTHORS CHANGELOG COPYRIGHT

library
  exposed-modules:   Data.SignedMultiset
  other-modules:     Data.SignedMultiset.Show, Data.SignedMultiset.Read
  build-depends:     base == 4.5.*, containers >= 0.4.2 && < 0.5
  hs-source-dirs:    src
  default-language:  Haskell98