[Octave-bug-tracker] [bug #49859] Octave 4.2.0 faults when encountering undefined variables

[Paul Irofti]

Follow-up Comment #1, bug #49859 (project octave):

I recompiled with debug symbols. Here is a stack trace when running the
command from my initial post:


(gdb) bt
#0  0x00001dc96edd664a in thrkill () at <stdin>:2
#1  0x00001dc96ee36ab9 in *_libc_abort ()
    at /usr/src/lib/libc/stdlib/abort.c:52
#2  0x00001dc8b21f22a5 in _Unwind_Resume (address@hidden)
    at /usr/src/gnu/usr.bin/cc/libgcc/../../../gcc/gcc/unwind.inc:238
#3  0x00001dc91ff72de7 in tree_identifier::rvalue (this=<optimized out>, 
    nargout=<optimized out>, lvalue_list=<optimized out>)
    at
/usr/ports/pobj/octave-4.2.0/octave-4.2.0/libinterp/octave-value/ovl.h:73
#4  0x00001dc91ff6f9e7 in tree_identifier::rvalue (nargout=0, 
    this=0x1dc92b35a480)
    at
/usr/ports/pobj/octave-4.2.0/octave-4.2.0/libinterp/parse-tree/pt-id.h:111
#5  tree_identifier::rvalue1 (this=0x1dc92b35a480, nargout=0)
    at
/usr/ports/pobj/octave-4.2.0/octave-4.2.0/libinterp/parse-tree/pt-id.cc:116
#6  0x00001dc91ff63336 in octave::tree_evaluator::visit_statement (
    this=<optimized out>, stmt=...)
    at
/usr/ports/pobj/octave-4.2.0/octave-4.2.0/libinterp/parse-tree/pt-eval.cc:691
#7  0x00001dc91ff629a9 in octave::tree_evaluator::visit_statement_list (
    this=0x1dc8f7ab4c80, lst=...)
    at
/usr/ports/pobj/octave-4.2.0/octave-4.2.0/libinterp/parse-tree/pt-eval.cc:733
#8  0x00001dc9202f2480 in octave::interpreter::main_loop (
    address@hidden)
    at
/usr/ports/pobj/octave-4.2.0/octave-4.2.0/libinterp/corefcn/interpreter.cc:889
#9  0x00001dc9202f3008 in octave::interpreter::execute (this=0x1dc913e19840)
    at
/usr/ports/pobj/octave-4.2.0/octave-4.2.0/libinterp/corefcn/interpreter.cc:756
#10 0x00001dc692a007c2 in ?? ()
#11 0x00001dc692a00512 in ?? ()
#12 0x0000000000000000 in ?? ()
(gdb) info thr
  Id   Target Id         Frame 
* 1    process 588170    0x00001dc96edd664a in thrkill () at <stdin>:2


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