Regression in mapM_ performance
The current mapM_ is sometimes worse than the version in 7.8.3. This can be fixed easily by eta-expansion, matching mapM.
Trac metadata
| Trac field | Value |
|---|---|
| Version | 7.10.1-rc2 |
| Type | Bug |
| TypeOfFailure | OtherFailure |
| Priority | normal |
| Resolution | Unresolved |
| Component | Core Libraries |
| Test case | |
| Differential revisions | |
| BlockedBy | |
| Related | |
| Blocking | |
| CC | core-libraries-committee@haskell.org |
| Operating system | |
| Architecture |