Re: [GHC] #2189: hSetBuffering stdin NoBuffering doesn't work on Windows
#2189: hSetBuffering stdin NoBuffering doesn't work on Windows
---+
Reporter: FalconNL|Owner: igloo
Type: merge | Status: new
Priority: high|Milestone: 6.10.2
Component: libraries/base | Version: 6.8.2
Severity: normal | Resolution:
Keywords: hsetbuffering buffering buffer | Difficulty: Unknown
Testcase: | Os: Windows
Architecture: x86 |
---+
Changes (by simonmar):
* owner: simonmar = igloo
* type: bug = merge
Comment:
Patch applied:
{{{
Thu Mar 5 03:33:23 PST 2009 Simon Marlow marlo...@gmail.com
* FIX #2189: re-enabled cooked mode for Console-connected Handles on
Windows
}}}
--
Ticket URL: http://hackage.haskell.org/trac/ghc/ticket/2189#comment:22
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[GHC] #3076: Make genericLength tail-recursive so it doesn't overflow stack
#3076: Make genericLength tail-recursive so it doesn't overflow stack
-+--
Reporter: Syzygies | Owner:
Type: run-time performance bug | Status: new
Priority: normal| Component: Compiler
Version: 6.10.1| Severity: normal
Keywords:| Testcase:
Os: Unknown/Multiple | Architecture: Unknown/Multiple
-+--
A likely use for genericLength is to count lists of more than Int
elements. However, the source code is not tail-recursive, making a poor
consumer, so genericLength easily overflows stack.
Here is the source code from 6.10.1:
{{{
genericLength :: (Num i) = [b] - i
genericLength []= 0
genericLength (_:l) = 1 + genericLength l
}}}
Here is a proposed alternative:
{{{
genericLength ∷ (Num i) ⇒ [b] → i
genericLength = len 0 where
len n [] = n
len n (_:xt) = len (n+1) xt
}}}
In my test application (enumerating the 66,960,965,307 atomic lattices on
six atoms) this alternative avoids overflowing the stack.
[This is not the same issue as
http://hackage.haskell.org/trac/ghc/ticket/2962]
--
Ticket URL: http://hackage.haskell.org/trac/ghc/ticket/3076
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Re: [GHC] #3075: validation requires a tool that is not included in utils
#3075: validation requires a tool that is not included in utils -+-- Reporter: nr|Owner: igloo Type: bug | Status: new Priority: normal|Milestone: Component: Build System | Version: 6.11 Severity: major | Resolution: Keywords:| Difficulty: Unknown Testcase:| Os: Linux Architecture: x86 | -+-- Changes (by igloo): * owner: = igloo * difficulty: = Unknown -- Ticket URL: http://hackage.haskell.org/trac/ghc/ticket/3075#comment:1 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler___ Glasgow-haskell-bugs mailing list Glasgow-haskell-bugs@haskell.org http://www.haskell.org/mailman/listinfo/glasgow-haskell-bugs
[GHC] #3077: 'make' fails in utils (6.11)
#3077: 'make' fails in utils (6.11) ---+ Reporter: nr | Owner: Type: bug | Status: new Priority: normal | Component: Build System Version: 6.11| Severity: normal Keywords: | Testcase: Os: Linux | Architecture: x86 ---+ In order to get 'make boot' to work in compiler, I tried running 'make' in utils. Something's off with configuration it appears. I'm attaching full output. Sorry to keep submitting these things with no patches. I don't have a strong enough picture of what's ''supposed'' to happen during build to be confident of making things better not worse. -- Ticket URL: http://hackage.haskell.org/trac/ghc/ticket/3077 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler___ Glasgow-haskell-bugs mailing list Glasgow-haskell-bugs@haskell.org http://www.haskell.org/mailman/listinfo/glasgow-haskell-bugs
Re: [GHC] #2189: hSetBuffering stdin NoBuffering doesn't work on Windows
#2189: hSetBuffering stdin NoBuffering doesn't work on Windows ---+ Reporter: FalconNL|Owner: igloo Type: merge | Status: closed Priority: high|Milestone: 6.10.2 Component: libraries/base | Version: 6.8.2 Severity: normal | Resolution: fixed Keywords: hsetbuffering buffering buffer | Difficulty: Unknown Testcase: | Os: Windows Architecture: x86 | ---+ Changes (by igloo): * status: new = closed * resolution: = fixed Comment: Merged -- Ticket URL: http://hackage.haskell.org/trac/ghc/ticket/2189#comment:23 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler___ Glasgow-haskell-bugs mailing list Glasgow-haskell-bugs@haskell.org http://www.haskell.org/mailman/listinfo/glasgow-haskell-bugs
[GHC] #3078: Erroneous warnings for -XPatternGuards
#3078: Erroneous warnings for -XPatternGuards
---+
Reporter: guest | Owner:
Type: bug | Status: new
Priority: normal | Component: Compiler
Version: 6.10.1 | Severity: normal
Keywords: | Testcase:
Os: Linux | Architecture: x86_64 (amd64)
---+
As nonstandard PatternGuards I get a meaningless warning:
{{{
walltest.hs:8:10:
Warning: Pattern match(es) are non-exhaustive
In the definition of `n': Patterns not matched:
Ok, modules loaded: Main.
}}}
{{{
{-# LANGUAGE PatternGuards #-}
{-# OPTIONS -Wall #-}
data T = A Int | B Int
funny :: T - Int
funny t = n
where n | A x - t = x
| B x - t = x
}}}
But none of that happens when using a case expression for the same thing:
{{{
{-# OPTIONS -Wall #-}
data T = A Int | B Int
funny :: T - Int
funny t = n
where n = case t of
(A x) - x
(B x) - x
}}}
--
Ticket URL: http://hackage.haskell.org/trac/ghc/ticket/3078
GHC http://www.haskell.org/ghc/
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