The base-feature-macros package

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This provides a set of feature macros describing features of base in a semantic way.

See base-feature-macros.h for set of currently provided macros.

In order to use the CPP header provided by this package, add this package as a dependency to your .cabal file, i.e.

build-depends: base-feature-macros: >= 0.1 && < 0.2

while making sure that the version specified as lower bound defines the feature-macros your code tests for. This is particularly important as CPP will implicitly treat undefined CPP macros as having the value 0. See also GNU CPP/CC's -Wundef warning to detect such errors.

Then in your code, you can include and use the <base-feature-macros.h> header like so

module M where

#include <base-feature-macros.h>

import Data.Foldable (Foldable (..))
import Prelude       hiding (foldr, foldr1)
import Data.Monoid hiding ((<>))

This package is inspired by the blogpost "Make macros mean something – readable backwards compatibility with CPP".


Versions0.1, 0.1,
Change logNone available
Dependenciesbase (>=4.3 && <4.11) [details]
AuthorHerbert Valerio Riedel
Bug tracker
Source repositoryhead: git clone
UploadedSat May 13 08:38:13 UTC 2017 by HerbertValerioRiedel


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