ghci-6.10.1 has odd buffering behavior
In ghci-6.10.1:
Prelude> :m +System.IO
Prelude System.IO> hGetBuffering stdin
NoBuffering
Prelude System.IO> getChar
asdf
'a'
Prelude System.IO> sdf
<interactive>:1:0: Not in scope: `sdf'
Prelude System.IO> That is, even though stdin is supposed to be unbuffered, getChar doesn't return until '\n' is entered.
The above works correctly in ghci-6.8.3.
Also, manually setting the buffering in ghci-6.10.1 works, but only for the duration of one statement:
Prelude System.IO> hSetBuffering stdin NoBuffering >> getChar
a'a'
Prelude System.IO> getChar
asdf
'a'
Prelude System.IO> sdf
<interactive>:1:0: Not in scope: `sdf'
Prelude System.IO> Trac metadata
| Trac field | Value |
|---|---|
| Version | 6.10.1 |
| Type | Bug |
| TypeOfFailure | OtherFailure |
| Priority | normal |
| Resolution | Unresolved |
| Component | GHCi |
| Test case | |
| Differential revisions | |
| BlockedBy | |
| Related | |
| Blocking | |
| CC | |
| Operating system | MacOS X |
| Architecture | x86 |