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 = 1produces
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 |