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Package: libghc-ghc-typelits-knownnat-prof (0.7.9-1 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) 0.7.9-1+b1 81.2 kB738.0 kB [list of files]
amd64 0.7.9-1+b2 59.4 kB430.0 kB [list of files]
arm64 0.7.9-1+b2 65.5 kB539.0 kB [list of files]
armel 0.7.9-1+b3 69.6 kB483.0 kB [list of files]
armhf 0.7.9-1+b3 68.6 kB475.0 kB [list of files]
hppa (unofficial port) 0.7.9-1+b4 100.6 kB718.0 kB [list of files]
i386 0.7.9-1+b2 82.9 kB510.0 kB [list of files]
ia64 (unofficial port) 0.7.9-1+b2 96.7 kB1,433.0 kB [list of files]
m68k (unofficial port) 0.7.9-1 77.7 kB571.0 kB [list of files]
mips64el 0.7.9-1+b2 78.8 kB732.0 kB [list of files]
ppc64 (unofficial port) 0.7.9-1+b2 71.6 kB738.0 kB [list of files]
ppc64el 0.7.9-1+b2 73.1 kB707.0 kB [list of files]
riscv64 0.7.9-1+b2 96.6 kB966.0 kB [list of files]
s390x 0.7.9-1+b2 75.6 kB775.0 kB [list of files]
sparc64 (unofficial port) 0.7.9-1+b1 92.4 kB1,133.0 kB [list of files]