C++ (Cpp) get_value_set Examples

Example #1

File: struct_factory.cpp Project: Moondee/Artemis

void struct_factory::register_value(expr * new_value) {
    sort * s        = m_manager.get_sort(new_value);
    value_set * set = get_value_set(s);
    if (!set->contains(new_value)) {
        m_values.push_back(new_value);
        set->insert(new_value);
    }
}

Example #2

File: value_set.cpp Project: lihaol/cbmc

bool value_sett::eval_pointer_offset(
  exprt &expr,
  const namespacet &ns) const
{
  bool mod=false;

  if(expr.id()==ID_pointer_offset)
  {
    assert(expr.operands().size()==1);

    object_mapt reference_set;
    get_value_set(expr.op0(), reference_set, ns, true);

    exprt new_expr;
    mp_integer previous_offset=0;

    const object_map_dt &object_map=reference_set.read();
    for(object_map_dt::const_iterator
        it=object_map.begin();
        it!=object_map.end();
        it++)
      if(!it->second.offset_is_set)
        return false;
      else
      {
        const exprt &object=object_numbering[it->first];
        mp_integer ptr_offset=compute_pointer_offset(object, ns);

        if(ptr_offset<0)
          return false;

        ptr_offset+=it->second.offset;

        if(mod && ptr_offset!=previous_offset)
          return false;

        new_expr=from_integer(ptr_offset, index_type());
        previous_offset=ptr_offset;
        mod=true;
      }

    if(mod)
      expr.swap(new_expr);
  }
  else
  {
    Forall_operands(it, expr)
      mod=eval_pointer_offset(*it, ns) || mod;
  }

  return mod;
}

Example #3

File: struct_factory.cpp Project: Moondee/Artemis

bool struct_factory::get_some_values(sort * s, expr_ref & v1, expr_ref & v2) {
    value_set * set = get_value_set(s);
    switch (set->size()) {
    case 0:
        v1 = get_fresh_value(s);
        v2 = get_fresh_value(s);
        return v1 != 0 && v2 != 0;
    case 1:
        v1 = get_some_value(s);
        v2 = get_fresh_value(s);
        return v2 != 0;
    default:
        obj_hashtable<expr>::iterator it = set->begin();
        v1 = *it;
        ++it;
        v2 = *it;
        return true;
    }
}

Example #4

File: value_set.cpp Project: lihaol/cbmc

void value_sett::get_value_set(
  const exprt &expr,
  value_setst::valuest &dest,
  const namespacet &ns) const
{
  object_mapt object_map;
  get_value_set(expr, object_map, ns, false);

  for(object_map_dt::const_iterator
      it=object_map.read().begin();
      it!=object_map.read().end();
      it++)
    dest.push_back(to_expr(it));

  #if 0
  for(value_setst::valuest::const_iterator it=dest.begin(); it!=dest.end(); it++)
    std::cout << "GET_VALUE_SET: " << from_expr(ns, "", *it) << std::endl;
  #endif
}