instance Read Integer contradicts Haskell98
http://haskell.org/onlinereport/standard-prelude.html says
instance Read Integer where
readsPrec p = readSigned readDecHowever, I get contradictory results in GHCi:
Prelude Numeric> readsPrec undefined "-(21602)zzz" :: [(Integer,String)]
[(-21602,"zzz")]
Prelude Numeric> readSigned readDec "-(21602)zzz" :: [(Integer,String)]
[](hugs, however, gives [] for both results)
Trac metadata
| Trac field | Value |
|---|---|
| Version | 6.6.1 |
| Type | Bug |
| TypeOfFailure | OtherFailure |
| Priority | normal |
| Resolution | Unresolved |
| Component | libraries/base |
| Test case | |
| Differential revisions | |
| BlockedBy | |
| Related | |
| Blocking | |
| CC | |
| Operating system | Unknown |
| Architecture | Unknown |