ghc-typelits-extra: Additional type-level operations on GHC.TypeLits.Nat
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Warnings:
- 'ghc-options: -O0' is not needed. Use the --disable-optimization configure flag.
Additional type-level operations on GHC.TypeLits.Nat:
Max: type-level maxMin: type-level minDiv: type-level divMod: type-level modFLog: type-level equivalent of integerLogBase# i.e. the exact integer equivalent tofloor (logBase x y)CLog: type-level equivalent of the ceiling of integerLogBase# i.e. the exact integer equivalent toceiling (logBase x y)Log: type-level equivalent of integerLogBase# where the operation only reduces whenfloor (logBase b x) ~ ceiling (logBase b x)GCD: a type-level gcdLCM: a type-level lcm
And a custom solver for the above operations defined in
GHC.TypeLits.Extra.Solver as a GHC type-checker plugin. To use the plugin,
add the
OPTIONS_GHC -fplugin GHC.TypeLits.Extra.Solver
pragma to the header of your file.
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Properties
| Versions | 0.1, 0.1.1, 0.1.2, 0.1.3, 0.2, 0.2.1, 0.2.2, 0.2.3, 0.2.4, 0.2.5, 0.2.6, 0.3, 0.3.1, 0.3.1, 0.3.2, 0.3.3, 0.4, 0.4.1, 0.4.2, 0.4.3, 0.4.4, 0.4.5, 0.4.6, 0.4.7 |
|---|---|
| Change log | CHANGELOG.md |
| Dependencies | base (>=4.8 && <5), containers (>=0.5.7.1 && <0.7), ghc (>=7.10 && <8.9), ghc-prim (>=0.5 && <1.0), ghc-tcplugins-extra (>=0.2), ghc-typelits-knownnat (>=0.6 && <0.8), ghc-typelits-natnormalise (>=0.6 && <0.8), integer-gmp (>=1.0 && <1.1), transformers (>=0.4.2.0 && <0.6) [details] |
| License | BSD-2-Clause |
| Copyright | Copyright © 2015-2016, University of Twente, 2017-2018, QBayLogic B.V. |
| Author | Christiaan Baaij |
| Maintainer | christiaan.baaij@gmail.com |
| Category | Type System |
| Home page | http://www.clash-lang.org/ |
| Bug tracker | http://github.com/clash-lang/ghc-typelits-extra/issues |
| Source repo | head: git clone https://github.com/clash-lang/ghc-typelits-extra.git |
| Uploaded | by ChristiaanBaaij at 2019-08-26T14:14:25Z |
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- ghc-typelits-extra-0.3.1.tar.gz [browse] (Cabal source package)
- Package description (as included in the package)
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Readme for ghc-typelits-extra-0.3.1
[back to package description]ghc-typelits-extra
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 maxGHC.TypeLits.Extra.Min: type-level minGHC.TypeLits.Extra.Div: type-level divGHC.TypeLits.Extra.Mod: type-level modGHC.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/integer-gmp/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 gcdGHC.TypeLits.Extra.LCM: a type-level lcm