[Octave-bug-tracker] [bug #63935] error during evaluation of conditional in if

[Arun Giridhar]

Follow-up Comment #5, bug #63935 (project octave):

The code in pt-eval.cc: 

bool
tree_evaluator::is_logically_true (tree_expression *expr,
                                   const char *warn_for)
{
  bool expr_value = false;

  m_call_stack.set_location (expr->line (), expr->column ());

  octave_value t1 = expr->evaluate (*this);

  if (t1.is_defined ())
    return t1.is_true ();
  else
    error ("%s: undefined value used in conditional expression", warn_for);

  return expr_value;
}




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