[Haskell-cafe] Code from Haskell School of Expression hanging.

Paul L ninegua at gmail.com
Sun Jan 30 21:53:27 CET 2011


You missed the comma after the first 8.

On Sun, Jan 30, 2011 at 12:15 PM, michael rice <nowgate at yahoo.com> wrote:

> The expression (the swapped line) on line 12 is all on one line in my code.
>
> Michael
>
> ======================
>
> [michael at localhost ~]$ ghc --make rat2.hs
> [1 of 1] Compiling Main             ( rat2.hs, rat2.o )
>
> rat2.hs:12:37:
>     Couldn't match expected type `(Int -> DisplayBits)
>                                   -> t
>                                   -> DisplayBits'
>            against inferred type `DisplayBits'
>     In the expression: DisplayStencilBits 8 DisplayAlphaBits 8
>     In the second argument of `openWindow', namely
>         `[DisplayStencilBits 8 DisplayAlphaBits 8]'
>     In a stmt of a 'do' expression:
>         openWindow
>           (Size 400 400) [DisplayStencilBits 8 DisplayAlphaBits 8] Window
> [michael at localhost ~]$
>
>
>
> --- On *Sun, 1/30/11, Paul L <ninegua at gmail.com>* wrote:
>
>
> From: Paul L <ninegua at gmail.com>
> Subject: Re: [Haskell-cafe] Code from Haskell School of Expression hanging.
> To: "michael rice" <nowgate at yahoo.com>
> Cc: haskell-cafe at haskell.org
> Date: Sunday, January 30, 2011, 1:57 PM
>
>
> Ok, in the GLFW sample program from Haskell Wiki, can you change the
> GLFW.openWindow line to the following, and try again?
>
> GLFW.openWindow (GL.Size 400 400) [GLFW.DisplayStencilBits 8,
> GLFW.DisplayAlphaBits 8] GLFW.Window
>
> Does it still run?
>
> Regards,
> Paul Liu
>
> On Sun, Jan 30, 2011 at 10:50 AM, michael rice <nowgate at yahoo.com<http://mc/compose?to=nowgate@yahoo.com>>
> wrote:
> >
> > What you see below is what I get. No window opens. System Monitor shows
> CPU usage negligible.
> >
> > Michael
> >
> > [michael at localhost ~]$ cd ./SOE/SOE/src
> > [michael at localhost src]$ ghci
> > GHCi, version 6.12.3: http://www.haskell.org/ghc/ <http://www.haskell.org/ghc/%C2%A0>:? for help
> > Loading package ghc-prim ... linking ... done.
> > Loading package integer-gmp ... linking ... done.
> > Loading package base ... linking ... done.
> > Loading package ffi-1.0 ... linking ... done.
> > Prelude> :l Snowflake.lhs
> > Ok, modules loaded: Snowflake, SOE.
> > Prelude Snowflake> main
> > Loading package old-locale-1.0.0.2 ... linking ... done.
> > Loading package old-time-1.0.0.5 ... linking ... done.
> > Loading package OpenGLRaw-1.1.0.1 ... linking ... done.
> > Loading package GLURaw-1.1.0.0 ... linking ... done.
> > Loading package ObjectName-1.0.0.0 ... linking ... done.
> > Loading package StateVar-1.0.0.0 ... linking ... done.
> > Loading package Tensor-1.0.0.1 ... linking ... done.
> > Loading package OpenGL-2.4.0.1 ... linking ... done.
> > Loading package GLFW-0.4.2 ... linking ... done.
> >
> >
> >
> >
> > Michael
> >
> > --- On Sun, 1/30/11, Paul L <ninegua at gmail.com<http://mc/compose?to=ninegua@gmail.com>>
> wrote:
> >
> > From: Paul L <ninegua at gmail.com <http://mc/compose?to=ninegua@gmail.com>
> >
> > Subject: Re: [Haskell-cafe] Code from Haskell School of Expression
> hanging.
> > To: "michael rice" <nowgate at yahoo.com<http://mc/compose?to=nowgate@yahoo.com>
> >
> > Cc: "Daniel Fischer" <daniel.is.fischer at googlemail.com<http://mc/compose?to=daniel.is.fischer@googlemail.com>>,
> haskell-cafe at haskell.org <http://mc/compose?to=haskell-cafe@haskell.org>
> > Date: Sunday, January 30, 2011, 1:03 PM
> >
> > I'm the maintainer of the SOE code. This is rather puzzling, since
> apparently GLFW works on your setup. I don't think there is much big
> difference in SOE than the sample GLFW program from the Haskell Wiki.
> > So when you run the SOE program, did you see the window but just all
> blank? Or you never see the window popping up?
> > Regards,
> > Paul Liu
> >
> > On Sat, Jan 29, 2011 at 7:34 PM, michael rice <nowgate at yahoo.com<http://mc/compose?to=nowgate@yahoo.com>>
> wrote:
> >
> > The sample program (the "active" version) here runs fine, so  the OpenGL
> GLFW must have been installed properly. Must be the SOE stuff causing the
> problem.
> >
> > http://www.haskell.org/haskellwiki/GLFW
> >
> > Michael
> >
> >
> > --- On Sat, 1/29/11, Daniel Fischer <daniel.is.fischer at googlemail.com<http://mc/compose?to=daniel.is.fischer@googlemail.com>>
> wrote:
> >
> > From: Daniel Fischer <daniel.is.fischer at googlemail.com<http://mc/compose?to=daniel.is.fischer@googlemail.com>
> >
> > Subject: Re: [Haskell-cafe] Code from Haskell School of Expression
> hanging.
> > To: "michael rice" <nowgate at yahoo.com<http://mc/compose?to=nowgate@yahoo.com>
> >
> > Date: Saturday, January 29, 2011, 9:37 PM
> >
> > On Sunday 30 January 2011 03:27:55, michael rice wrote:
> > > I'm using the OpenGL stuff (GLFW). Same set of problems?
> >
> > No idea, I haven't used a graphics library for a long time.
> >
> >
> >
> > _______________________________________________
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> > Haskell-Cafe at haskell.org <http://mc/compose?to=Haskell-Cafe@haskell.org>
> > http://www.haskell.org/mailman/listinfo/haskell-cafe
> >
> >
> >
> >
> >
>
>
>
> --
> Regards,
> Paul Liu
>
>
>


-- 
Regards,
Paul Liu
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