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 |