From help-octave-request at bevo dot che dot wisc dot edu Wed Jan 28 01:50:09 2004
Subject: Re: struct question
From: "Dmitri A. Sergatskov" <dmitri at unm dot edu>
To: Paul Kienzle <pkienzle at users dot sourceforge dot net>
Cc: octave-help-list <help-octave at bevo dot che dot wisc dot edu>
Date: Wed, 28 Jan 2004 00:48:37 -0700

Paul Kienzle wrote:
> I've implemented a more complete version of struct for 2.1.52
> (it handles struct arrays).  Let me know if you backport it to 2.1.50.

Well, I decided to get in with times and installed octave-2.1.53.
I was having hard time compiling the latest octave-forge with it.
mex bombs:


mex.cc: In member function `mxArray* mxArray::field(const std::string&, int)
    const':
mex.cc:377: error: no match for 'operator[]' in '*this->mxArray::pmap[key]'
mex.cc: In member function `void mxArray::field(const std::string&, int,
    mxArray*)':
mex.cc:383: error: no match for 'operator[]' in '*this->mxArray::pmap[key]'
mex.cc: In member function `mxArray* mex::make_value(int, int, const
    string_vector&)':
mex.cc:551: error: call of overloaded `assign(std::string, octave_value_list&)'
    is ambiguous
/usr/local/include/octave-2.1.53/octave/oct-map.h:123: error: candidates are:
    Octave_map& Octave_map::assign(const std::string&, const octave_value&)
/usr/local/include/octave-2.1.53/octave/oct-map.h:125: error:
    Octave_map& Octave_map::assign(const std::string&, const Cell&)
make: *** [mex.o] Error 1


I do not care about it that much so I NOINSTALLed it.

Another problem is listen in main/miscellaneous:

listen.cc: In function `void process_commands(int)':
listen.cc:331: error: `bind_global_error_variable' undeclared (first use this
    function)
listen.cc:331: error: (Each undeclared identifier is reported only once for
    each function it appears in.)
listen.cc:347: error: `clear_global_error_variable' undeclared (first use this
    function)
listen.cc: In function `octave_value_list Flisten(const octave_value_list&,
    int)':
listen.cc:564: error: no matching function for call to `unwind_protect::
    save_bool(int*, int&)'
/usr/local/include/octave-2.1.53/octave/unwind-prot.h:103: error: candidates
    are: static void unwind_protect::save_bool(bool*, bool)

I do not care for 'listen' either (at least now), but I do for some other stuff in misc.
(dispatch e.g.). I commented out  'listen' from Makefile and after that it
went through. (I would think that dispatched should be moved to some other directory
from misc since it is essential for octave forge, while many other programs
there are truly optional.)

Struct works now:
octave:1> s=struct('a',1,'b',2,'c',3)
s =
{
   a = 1
   b = 2
   c = 3
}
I thought that struct array refer to things like
s(2,1)=struct('a',1,'b',2,'c',3)
which seems to be working as well now.

Sincerely,

Dmitri.




-------------------------------------------------------------
Octave is freely available under the terms of the GNU GPL.

Octave's home on the web:  http://www.octave.org
How to fund new projects:  http://www.octave.org/funding.html
Subscription information:  http://www.octave.org/archive.html
-------------------------------------------------------------