Incorrect warning: Pattern match(es) are overlapped
The following program
main = print $ f ab
a = "foo"
ab = "bar"
f :: String -> Int
f a = 0
f ab = 1
produces
Warning: Pattern match(es) are overlapped
In the definition of `f': f ab = ...
but the patterns don't overlap, i.e., if a matches, ab does not match, and viceversa.
Trac metadata
Trac field | Value |
---|---|
Version | 6.6 |
Type | Bug |
TypeOfFailure | OtherFailure |
Priority | normal |
Resolution | Unresolved |
Component | Compiler |
Test case | |
Differential revisions | |
BlockedBy | |
Related | |
Blocking | |
CC | |
Operating system | |
Architecture |