Difference between revisions of "Multi-parameter type class"
Jump to navigation
Jump to search
(basics) |
BrettGiles (talk | contribs) m (→About: minor wibble) |
||
Line 5: | Line 5: | ||
== About == |
== About == |
||
− | Basically, type |
+ | Basically, [[type]] [[class]]es which can take multiple arguments, such as: |
<hask> |
<hask> |
||
Line 11: | Line 11: | ||
</hask> |
</hask> |
||
− | Without [[ |
+ | Without [[functional dependencies]] or [[associated types]], these multi-parameter type classes may cause too much ambiguity to pass the type-checker. |
== Also see == |
== Also see == |
Revision as of 17:23, 28 August 2007
About
Basically, type classes which can take multiple arguments, such as:
class Foo a b
Without functional dependencies or associated types, these multi-parameter type classes may cause too much ambiguity to pass the type-checker.