[Octave-bug-tracker] [bug #50068] Segfault, when eval_string is used in interpreter embedded mode

[Dmitry Messerman]

Follow-up Comment #2, bug #50068 (project octave):

Answering your questions:

1) Very similar code worked for 4.0.2
   I've changed only header from toplev.h to interpreter.h
   Note that on 4.2.0 version with toplev.h segfaults as well
2) There are other scenarios, where feval is not applicable.
   Attached below is example of more generic case, which works
   on 4.0.2 and segfaults on 4.2.0

#include <string>
#include <octave/oct.h>
#include <octave/octave.h>
#include <octave/parse.h>
#include <octave/toplev.h>

int main (int argc, char** argv) {
  string_vector octave_argv (2);
  octave_argv(0) = "embedded";
  octave_argv(1) = "-q";
  octave_main (2, octave_argv.c_str_vec (), 1);
  int parse_status;
  eval_string(std::string("[2,1;1,2]\\[1;1]"),0, parse_status);
  std::_Exit(0);
  return 0;
}

Expected output from 4.0.2:

ans =

   0.333333333333333
   0.333333333333333

Current output from 4.2.0:

Segmentation fault


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