Re: liboctave crash

[Juan Pablo Carbajal]

On Fri, Jul 27, 2012 at 4:19 PM, bob <address@hidden> wrote:
>
> On Jul 27, 2012 7:35 PM, "Andy Buckle" <address@hidden> wrote:
>>
>>
>>
>> On 27 July 2012 14:58, Juan Pablo Carbajal <address@hidden> wrote:
>>>
>>> On Fri, Jul 27, 2012 at 1:38 PM, bob <address@hidden> wrote:
>>> > Hi,
>>> >
>>> > I am trying to run this small code:
>>> >
>>> > #include <iostream>
>>> > #include <octave/oct.h>
>>> >
>>> > using namespace std;
>>> >
>>> > int main()  {
>>> >     ComplexMatrix A = ComplexMatrix(2,2);
>>> >     return 0;
>>> > }
>>> >
>>> > Using octave-3.6.2 (MinGW), I am able to build the file. But when I run
>>> > it,
>>> > I get a seg-fault:
>>> >
>>> > Program received signal SIGSEGV, Segmentation fault.
>>> > In libstdc++-6!_ZNKSs7_M_dataEv () (C:\MinGW\bin\libstdc++-6.dll)
>>> >
>>> > Even using:
>>> >
>>> > mkoctfile --link-stand-alone <file>
>>> >
>>> > I get the same crash.
>>> >
>>> > System: WinXP SP2 (32bit), Core 2 Duo
>>> >
>>> > Any help ?
>>> > --
>>> > bob
>>> >
>>> > _______________________________________________
>>> > Help-octave mailing list
>>> > address@hidden
>>> > https://mailman.cae.wisc.edu/listinfo/help-octave
>>> >
>>>
>>> You have tu use the dynamically loaded function macro. This is an
>>> example form the manual
>>>
>>> http://www.gnu.org/software/octave/doc/interpreter/Getting-Started-with-Oct_002dFiles.html
>>>
>>> #include <octave/oct.h>
>>>
>>>      DEFUN_DLD (helloworld, args, nargout,
>>>        "Hello World Help String")
>>>      {
>>>        int nargin = args.length ();
>>>        octave_stdout << "Hello World has " << nargin
>>>              << " input arguments and "
>>>              << nargout << " output arguments.\n";
>>>        return octave_value_list ();
>>>      }
>>>
>>>
>>>
>>> --
>>> M. Sc. Juan Pablo Carbajal
>>
>>
>> If an oct-file function is required, then you have to use the macro. It
>> looks like bob is trying to create something to be called from outside
>> Octave.
>
> Exactly. I am trying to create:
>
> 1. A standalone executable using octave functions.
> 2. A DLL binary also using octave functions.
>
>>
>> --
>> /* andy buckle */

Tried in Ubuntu 12.04 64bits

$ mkoctfile --link-stand-alone -pthread  -L<path to liboctave> func.cc
$ ./a.out
./a.out: error while loading shared libraries: liboctave.so.1: cannot
open shared object file: No such file or directory

Any clues why it doesn't run or how to fix it?



-- 
M. Sc. Juan Pablo Carbajal
-----
PhD Student
University of Zürich
http://ailab.ifi.uzh.ch/carbajal/