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Package: libghc-ghc-typelits-knownnat-prof (0.7.12-1 and others)

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Derive KnownNat constraints from other KnownNat constraints; profiling libraries

A type checker plugin for GHC that can derive "complex" KnownNat constraints from other simple/variable KnownNat constraints. i.e. without this plugin, you must have both a KnownNat n and a KnownNat (n+2) constraint in the type signature of the following function:

f :: forall n . (KnownNat n, KnownNat (n+2)) => Proxy n -> Integer f _ = natVal (Proxy :: Proxy n) + natVal (Proxy :: Proxy (n+2))

Using the plugin you can omit the KnownNat (n+2) constraint:

f :: forall n . KnownNat n => Proxy n -> Integer f _ = natVal (Proxy :: Proxy n) + natVal (Proxy :: Proxy (n+2))

The plugin can derive KnownNat constraints for types consisting of: 

 * Type variables, when there is a corresponding KnownNat constraint


 * Type-level naturals


 * Applications of the arithmetic expression: +,-,*,^


 * Type functions, when there is either:

1. a matching given KnownNat constraint; or

2. a corresponding KnownNat<N> instance for the type function

To use the plugin, add the

OPTIONS_GHC -fplugin GHC.TypeLits.KnownNat.Solver

Pragma to the header of your file.

This package provides a library for the Haskell programming language, compiled for profiling. See http://www.haskell.org/ for more information on Haskell.

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Architecture Version Package Size Installed Size Files
alpha (unofficial port) 0.7.12-1+b1 77.8 kB748.0 kB [list of files]
amd64 0.7.12-1+b2 57.5 kB444.0 kB [list of files]
arm64 0.7.12-1+b2 63.0 kB555.0 kB [list of files]
armel 0.7.12-1+b2 72.4 kB527.0 kB [list of files]
armhf 0.7.12-1+b2 71.6 kB517.0 kB [list of files]
hppa (unofficial port) 0.7.12-1+b3 97.2 kB723.0 kB [list of files]
i386 0.7.12-1+b2 79.0 kB526.0 kB [list of files]
ia64 (unofficial port) 0.7.9-1+b2 96.7 kB1,433.0 kB [list of files]
loong64 (unofficial port) 0.7.12-1+b2 101.3 kB1,072.0 kB [list of files]
m68k (unofficial port) 0.7.12-1 77.9 kB569.0 kB [list of files]
mips64el 0.7.12-1+b2 76.9 kB739.0 kB [list of files]
ppc64 (unofficial port) 0.7.12-1+b2 69.7 kB753.0 kB [list of files]
ppc64el 0.7.12-1+b2 69.4 kB725.0 kB [list of files]
riscv64 0.7.12-1+b2 100.0 kB1,052.0 kB [list of files]
s390x 0.7.12-1+b2 82.1 kB891.0 kB [list of files]
sparc64 (unofficial port) 0.7.12-1+b2 89.5 kB1,160.0 kB [list of files]