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Re: [fluid-dev] Patch for fast midi file rendering

From: Pedro Lopez-Cabanillas
Subject: Re: [fluid-dev] Patch for fast midi file rendering
Date: Sat, 21 Mar 2009 19:00:22 +0100
User-agent: KMail/1.9.6 (enterprise 20070904.708012)

David Henningsson wrote:
> Strange, it works here (gcc (Ubuntu 4.3.2-1ubuntu12) 4.3.2).
> Nevertheless, here's a patch that should build on both versions.

Yes, this time your patch compiles without error messages.

The explanation for the compiler error is: fluidsynth.c is a client, it has 
only access to the public functions and types published by "fluidsynth.h". It 
can't access members, like synth->settings, because fluid_synth_t has no 
public members. This is a deliberate encapsulation. 

Please, fix your development environment. If you are using an experimental GCC 
package, try to test your code also with a stable compiler.

> // David
> Pedro Lopez-Cabanillas skrev:
> > David Henningsson wrote:
> >> Enough said - now go enjoy the new patch!
> >
> > Sorry, but:
> >
> > fluidsynth.c: In function ‘fast_render_loop’:
> > fluidsynth.c:185: error: dereferencing pointer to incomplete type
> > fluidsynth.c:186: error: dereferencing pointer to incomplete type
> > make[2]: *** [fluidsynth-fluidsynth.o] Error 1
> > [...]
> > $ gcc --version
> > gcc (GCC) 4.2.1 (SUSE Linux)

The first test was in openSuse 10.3, but I've tried two more compilers.
openSuse 11.1:
        gcc (SUSE Linux) 4.3.2 [gcc-4_3-branch revision 141291]

Ubuntu 8.04:
        gcc (GCC) 4.2.4 (Ubuntu 4.2.4-1ubuntu3)

Both are reporting the same error: dereferencing pointer to incomplete type.


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