[Octave-bug-tracker] [bug #34649] Crash on concatenating empty-fielded structs

[Rik]

Update of bug #34649 (project octave):

                Severity:              3 - Normal => 4 - Important          
                  Status:                    None => Confirmed              

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Follow-up Comment #1:

Yikes.  This is completely easy to duplicate.

Here is a backtrace from an unoptimized debug version of octave which includes
line numbers.


#0  0x00007ffff7016359 in octave_refcount<int>::operator++ (this=0x71) at
../liboctave/oct-refcount.h:43
#1  0x00007ffff7067959 in octave_fields::operator= (this=0xd3e478, o=...) at
oct-map.h:86
#2  0x00007ffff7067bef in octave_map::operator= (this=0xd3e478, m=...) at
oct-map.h:289
#3  0x00007ffff72f8259 in permute_to_correct_order<octave_map> (n=2, nf=0,
idx=2, map_list=0x7e81d8, 
    new_map_list=0xd3e428) at oct-map.cc:641
#4  0x00007ffff72f2785 in octave_map::cat (dim=-2, n=2, map_list=0x7e81d8) at
oct-map.cc:758
#5  0x00007ffff7567318 in single_type_concat<octave_map> (result=..., dv=...,
tmp=...) at pt-mat.cc:902
#6  0x00007ffff7564f89 in do_single_type_concat<octave_map> (dv=..., tmp=...)
at pt-mat.cc:932
#7  0x00007ffff75660d9 in tree_matrix::rvalue1 (this=0xb46aa0) at
pt-mat.cc:1072
#8  0x00007ffff754d06c in tree_simple_assignment::rvalue1 (this=0xcb31b0) at
pt-assign.cc:205
#9  0x00007ffff75588a7 in tree_evaluator::visit_statement
(this=0x7ffff7ddcaf8, stmt=...) at pt-eval.cc:739
#10 0x00007ffff75770e6 in tree_statement::accept (this=0x7f7300, tw=...) at
pt-stmt.cc:151
#11 0x00007ffff7558a92 in tree_evaluator::visit_statement_list
(this=0x7ffff7ddcaf8, lst=...) at pt-eval.cc:775
#12 0x00007ffff7577494 in tree_statement_list::accept (this=0xc41730, tw=...)
at pt-stmt.cc:215
#13 0x00007ffff73c6971 in main_loop () at toplev.cc:574
#14 0x00007ffff7379c8c in octave_main (argc=6, argv=0x7fffffffd2c8,
embedded=0) at octave.cc:938
#15 0x0000000000400769 in main (argc=6, argv=0x7fffffffd2c8) at main.c:35





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