@hackage / ghc-typelits-extra

Additional type-level operations on GHC.TypeLits.Nat

Latest0.5.3

About

Metadata

  • Last updated , by QBayLogic
  • License BSD-2-Clause
  • Categories Type System

  • Maintained by: christiaan.baaij@gmail.com

  • Lottery factor: 2

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Installation

Tested Compilers

  1. 9.12.2
  2. 9.10.3
  3. 9.8.4
  4. 9.6.6
  5. 9.4.8
  6. 9.2.8
  7. 9.0.2
  8. 8.10.7
  9. 8.8.4

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Use the -f option with cabal commands to enable flags

    deverror (off by default)

    Enables `-Werror` for development mode and TravisCI

Readme

ghc-typelits-extra

Build Status Hackage Hackage Dependencies

Extra type-level operations on GHC.TypeLits.Nat and a custom solver implemented as a GHC type-checker plugin:

  • GHC.TypeLits.Extra.Max: type-level max
  • GHC.TypeLits.Extra.Min: type-level min
  • GHC.TypeLits.Extra.Div: type-level div
  • GHC.TypeLits.Extra.Mod: type-level mod
  • GHC.TypeLits.Extra.FLog: type-level equivalent of integerLogBase# .i.e. the exact integer equivalent to "floor (logBase x y)"
  • GHC.TypeLits.Extra.CLog: type-level equivalent of the ceiling of integerLogBase# .i.e. the exact integer equivalent to "ceiling (logBase x y)"
  • 'GHC.TypeLits.Extra.Log': type-level equivalent of <https://hackage.haskell.org/package/base-4.17.0.0/docs/GHC-Integer-Logarithms.html#v:integerLogBase-35- integerLogBase#> where the operation only reduces when "floor (logBase b x) ~ ceiling (logBase b x)"
  • GHC.TypeLits.Extra.GCD: a type-level gcd
  • GHC.TypeLits.Extra.LCM: a type-level lcm