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Re: .oct files - keeping state across calls


From: Christophe Tournery
Subject: Re: .oct files - keeping state across calls
Date: Tue, 14 Jul 2009 10:45:36 +0200

On Jul 13, 2009, at 11:41 PM, John W. Eaton wrote:

On 13-Jul-2009, Christophe Tournery wrote:

| Attached is an example .cpp file that can be compile with mkoctfile,
| demonstrating the issue. I have included a simple makefile to compile
| it and create the necessary symlinks.
|
| The code tries to store handles to a library in a map. The key to the | map is passed back to octave such that the "user" can choose on which
| instance of the library a function is called.
|
| Thanks for testing and I am curious to know if you guys think it is a
| bug in 3.2 or if it was "un-intentionally" working in 3.0.
| Christophe Tournery
|
|
| Testing in Octave 3.0.5:
| ------------------------
|
| octave:1> h1 = mylib_init()
| h1 = 0
| octave:2> h2 = mylib_init()
| h2 =  1
| octave:3> mylib_destroy(h1)
| octave:4> mylib_destroy(h2)
|
|
| Testing in octave 3.2.0:
| ------------------------
|
| octave:1> h1 = mylib_init()
| h1 = 0
| octave:2> h2 = mylib_init()
| h2 =  1
| octave:3> mylib_destroy(h1)
| error: mylib_destroy: handle '0' does not exist!
| octave:3> mylib_destroy(h2)
| error: mylib_destroy: handle '1' does not exist!

I can't duplicate this problem with Octave 3.2.0 on my system.

jwe

Could it be an issue with my build from MacPorts then? (Mac OS X 10.5.7, macports 1.710)
I see that the Portfile configures octave with:

configure.args      --enable-shared \
                    --enable-dl \
                    --disable-static \
                    --with-hdf5 \
                    --with-fftw \
                    --with-blas="-framework Accelerate" \
                    --enable-static \
                    --enable-readline \
                    --with-zlib \
                    --with-glpk \
                    --with-curl \
                    --with-lapack \
                    --with-umfpack \
                    --with-colamd \
                    --with-ccolamd \
                    --with-cholmod \
                    --with-cxsparse

Christophe


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