Assign Cell to octave map: error
Alexander Rusakov
alexander.rusakov at googlemail.com
Thu Mar 12 15:12:18 CDT 2009
Bug report for Octave 3.0.3 configured for i686-pc-linux-gnu
Description:
-----------
I believe that I found a bug in Octave c++ API. The problem that it is not
possible to assign arbitrary cell to an octave_map because of error from
octave API. This happens if:
1) Octave_map already has got some data
2) The size of Cell != 1.
I guess that line 461 in oct_map.cc file contains a bug. Probably the whole
function has got some bug because I can not understand why there is a need
of comparison of dimension of octave_map and Cell which is only an element
in map.
00448 Octave_map&
00449 Octave_map::assign (const std::string& k, const Cell& rhs)
00450 {
00451 if (nfields () == 0)
00452 {
00453 maybe_add_to_key_list (k);
00454
00455 map[k] = rhs;
00456
00457 dimensions = rhs.dims ();
00458 }
00459 else
00460 {
00461 if (dims () == rhs.dims ())
00462 {
00463 maybe_add_to_key_list (k);
00464
00465 map[k] = rhs;
00466 }
00467 else
00468 error ("invalid structure assignment");
00469 }
00470
Repeat-By:
---------
My problem that this code does not work:
//This does not work as I expect
Octave_map omap;
cout << " Adding cell arrays to one maps \n";
{
// I am trying to create 1d cell array of size 1
dim_vector dv(1);
Cell oc(dv);
cout << "Trying to add cell array of size " << dv(0) << " is added to
octave_map" << endl;
omap.assign("cell1", oc);
cout << "cell array of size " << dv(0) << " is added to octave_map" <<
endl;
}
{
// I am trying to create 1d cell array of size 2
dim_vector dv(1);
dv(0) = 2;
Cell oc(dv);
cout << "Trying to add cell array of size " << dv(0) << " is added to
octave_map" << endl;
/ /Here I get an error message "error: invalid structure assignment"
omap.assign("cell2", oc);
cout << "cell array of size " << dv(0) << " is added to octave_map" <<
endl;
}
So the produced output is :
Trying to add cell array of size 1 is added to octave_map
cell array of size 1 is added to octave_map
Trying to add cell array of size 2 is added to octave_map
error: invalid structure assignment <-------------------
Octave message
cell array of size 2 is added to octave_map
I am also sending a simple example which demonstrates the problem, and when
it happens. To compile:
mkoctfile TestOctaveCellMap.cpp
To execute:
octave --eval "TestOctaveCellMap"
Fix:
---
I guess that assertion in oct_map.cc on line 461 must be removed. Probably
extra changes are required.
Configuration (please do not edit this section):
-----------------------------------------------
uname output: Linux copernicus 2.6.22.14-72.fc6 #1 SMP Wed Nov 21
15:12:59 \
EST 2007 i686 i686 i386 GNU/Linux
configure opts: 'CFLAGS=-g -O0' 'CXXFLAGS=-g -O0' 'FFLAGS=-g -O0'
'--prefix=/\
home/rusakov/OCTAVEDBG'
Fortran compiler: gfortran
FFLAGS: -g -O0 -mieee-fp
F2C: @F2C@
F2CFLAGS: @F2CFLAGS@
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-L/usr/lib/gcc/i386-re\
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CPPFLAGS:
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C compiler: gcc, version 4.1.2 20070626 (Red Hat 4.1.2-13)
CFLAGS: -g -O0
CPICFLAG: -fPIC
C++ compiler: g++, version 4.1.2
CXXFLAGS: -g -O0
CXXPICFLAG: -fPIC
LD_CXX: g++
LDFLAGS:
LIBFLAGS: -L.
RLD_FLAG: -Wl,-rpath -Wl,/home/rusakov/OCTAVEDBG/lib/octave-3.0.3
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LEXLIB:
LIBGLOB:
SED: /bin/sed
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User-preferences (please do not edit this section):
--------------------------------------------------
EDITOR = emacs
EXEC_PATH =
/home/rusakov/OCTAVEDBG/libexec/octave/3.0.3/site/exec/i686-pc-linux-g\
nu:/home/rusakov/OCTAVEDBG/libexec/octave/api-v32/site/exec/i686-pc-linux-gnu:/home/\
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IMAGE_PATH = .:/home/rusakov/OCTAVEDBG/share/octave/3.0.3/imagelib
PAGER = less
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string_fill_char =
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suppress_verbose_help_message = 0
Thanks and Best Regards,
Alexander Rusakov
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