Talk:GHC/Type families: Difference between revisions
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Paragraph 6 is a copy of Paragraph 4 except Collects is used. | Paragraph 6 is a copy of Paragraph 4 except Collects is used. | ||
In 7.3 Equality constraints | |||
Why was `<hask>~</hask>' used, instead of `<hask>=</hask>` ? | |||
[[User:StefanLjungstrand|StefanLjungstrand]] 19:55, 12 December 2007 (UTC) | |||
== GADT syntax in Type Families == | |||
GADT syntax is allowed nowadays, as per http://www.haskell.org/ghc/docs/latest/html/users_guide/type-families.html#data-instance-declarations. | |||
An update of the Wiki also would be in place. | |||
[[User:obscaenvs|Fredrik Carlén]] | |||
Latest revision as of 09:27, 12 July 2012
How does this change now that GHC 6.8.1 is out? MathematicalOrchid 12:55, 11 November 2007 (UTC)
In 4.3.2 Examples
module GMap (GMapKey(..), GMap(..)) where...: As before, but also exports all the data constructors GMapInt, GMapChar, GMapUnit, GMapPair, and GMapUnit.
should probably be:
module GMap (GMapKey(..), GMap(..)) where...: As before, but also exports all the data constructors GMapInt, GMapChar, GMapUnit, GMapPair, and GMapEither.
Paragraph 6 is a copy of Paragraph 4 except Collects is used.
In 7.3 Equality constraints
Why was `~' used, instead of `=` ?
StefanLjungstrand 19:55, 12 December 2007 (UTC)
GADT syntax in Type Families
GADT syntax is allowed nowadays, as per http://www.haskell.org/ghc/docs/latest/html/users_guide/type-families.html#data-instance-declarations.
An update of the Wiki also would be in place. Fredrik Carlén