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Diffstat (limited to 'docs/users_guide/using-warnings.rst')
| -rw-r--r-- | docs/users_guide/using-warnings.rst | 12 |
1 files changed, 0 insertions, 12 deletions
diff --git a/docs/users_guide/using-warnings.rst b/docs/users_guide/using-warnings.rst index 8106003f7d..aeb402d7ce 100644 --- a/docs/users_guide/using-warnings.rst +++ b/docs/users_guide/using-warnings.rst @@ -925,18 +925,6 @@ of ``-W(no-)*``. declaration is missing one or more methods, and the corresponding class declaration has no default declaration for them. - The warning is suppressed if the method name begins with an - underscore. Here's an example where this is useful: :: - - class C a where - _simpleFn :: a -> String - complexFn :: a -> a -> String - complexFn x y = ... _simpleFn ... - - The idea is that: (a) users of the class will only call - ``complexFn``; never ``_simpleFn``; and (b) instance declarations - can define either ``complexFn`` or ``_simpleFn``. - The ``MINIMAL`` pragma can be used to change which combination of methods will be required for instances of a particular class. See :ref:`minimal-pragma`. |