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Any applicative functor can be given numeric instances in a boilerplate way. The /applicative-numbers/ package provides an include file that makes it a snap to define these instances. See "Data.Numeric.Function" for an example. Project wiki page: <http://haskell.org/haskellwiki/applicative-numbers> Copyright 2009-2013 Conal Elliott; BSD3 license. Instances of @Num@ classes for applicative functors. To be @#include@'d after defining @APPLICATIVE@ as the applicative functor name and @CONSTRAINTS@ as a list of constraints, which must carry its own trailing comma if non-empty. The @APPLICATIVE@ symbol gets @#undef@'d at the end of the include file, so that multiple includes are convenient. For instance, @ #define INSTANCE_Ord #define INSTANCE_Enum #define APPLICATIVE Vec2 #include \"ApplicativeNumeric-inc.hs\" #define APPLICATIVE Vec3 #include \"ApplicativeNumeric-inc.hs\" #define APPLICATIVE Vec4 #include \"ApplicativeNumeric-inc.hs\" @ You'll also have to import 'pure' and 'liftA2' from "Control.Applicative" and specify @the FlexibleContexts@ language extension (due to an implementation hack). Some instances are generated only if a corresponding CPP symbol is defined: @INSTANCE_Eq@, @INSTANCE_Ord@, @INSTANCE_Show@, @INSTANCE_Enum@

Homepage:

http://haskell.org/haskellwiki/applicative-numbers

License:

BSD

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Metadata

Description

• Any applicative functor can be given numeric instances in a boilerplate way. The /applicative-numbers/ package provides an include file that makes it a snap to define these instances. See "Data.Numeric.Function" for an example. Project wiki page: <http://haskell.org/haskellwiki/applicative-numbers> Copyright 2009-2013 Conal Elliott; BSD3 license. Instances of @Num@ classes for applicative functors. To be @#include@'d after defining @APPLICATIVE@ as the applicative functor name and @CONSTRAINTS@ as a list of constraints, which must carry its own trailing comma if non-empty. The @APPLICATIVE@ symbol gets @#undef@'d at the end of the include file, so that multiple includes are convenient. For instance, @ #define INSTANCE_Ord #define INSTANCE_Enum #define APPLICATIVE Vec2 #include \"ApplicativeNumeric-inc.hs\" #define APPLICATIVE Vec3 #include \"ApplicativeNumeric-inc.hs\" #define APPLICATIVE Vec4 #include \"ApplicativeNumeric-inc.hs\" @ You'll also have to import 'pure' and 'liftA2' from "Control.Applicative" and specify @the FlexibleContexts@ language extension (due to an implementation hack). Some instances are generated only if a corresponding CPP symbol is defined: @INSTANCE_Eq@, @INSTANCE_Ord@, @INSTANCE_Show@, @INSTANCE_Enum@

Maintainers

• Gentoo Haskell (haskell@gentoo.org) - Type: project

<pkgmetadata>
	<maintainer type="project">
		<email>haskell@gentoo.org</email>
		<name>Gentoo Haskell</name>
	</maintainer>
	<longdescription>
		Any applicative functor can be given numeric instances in a boilerplate way.
		The /applicative-numbers/ package provides an include file that makes it a
		snap to define these instances.
		See &quot;Data.Numeric.Function&quot; for an example.
		
		Project wiki page: &lt;http://haskell.org/haskellwiki/applicative-numbers&gt;
		
		Copyright 2009-2013 Conal Elliott; BSD3 license.
		
		
		Instances of @Num@ classes for applicative functors.  To be @#include@&#39;d after
		defining @APPLICATIVE@ as the applicative functor name and @CONSTRAINTS@ as a
		list of constraints, which must carry its own trailing comma if non-empty.
		The @APPLICATIVE@ symbol gets @#undef@&#39;d at the end of the include file, so
		that multiple includes are convenient.
		
		For instance,
		
		@
		#define INSTANCE_Ord
		#define INSTANCE_Enum
		
		#define APPLICATIVE Vec2
		#include \&quot;ApplicativeNumeric-inc.hs\&quot;
		
		#define APPLICATIVE Vec3
		#include \&quot;ApplicativeNumeric-inc.hs\&quot;
		
		#define APPLICATIVE Vec4
		#include \&quot;ApplicativeNumeric-inc.hs\&quot;
		@
		
		You&#39;ll also have to import &#39;pure&#39; and &#39;liftA2&#39; from &quot;Control.Applicative&quot;
		and specify @the FlexibleContexts@ language extension (due to an implementation hack).
		
		Some instances are generated only if a corresponding CPP symbol is
		defined: @INSTANCE_Eq@, @INSTANCE_Ord@, @INSTANCE_Show@, @INSTANCE_Enum@
	</longdescription>
</pkgmetadata>

Lint Warnings

• [Warning] Missing md5-cache for version 0.1.3. Run 'ebuild <ebuild_file> manifest' or 'egencache' to generate it.

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