pointer_predicates.h

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/*******************************************************************\
 
Module: Various predicates over pointers in programs
 
Author: Daniel Kroening, kroening@kroening.com
 
\*******************************************************************/

 
#ifndef CPROVER_UTIL_POINTER_PREDICATES_H
#define CPROVER_UTIL_POINTER_PREDICATES_H
 
#include "std_expr.h"
 
#define SYMEX_DYNAMIC_PREFIX "symex_dynamic"
 
exprt same_object(const exprt &p1, const exprt &p2);
exprt deallocated(const exprt &pointer, const namespacet &);
exprt dead_object(const exprt &pointer, const namespacet &);
exprt pointer_offset(const exprt &pointer);
exprt pointer_object(const exprt &pointer);
exprt object_size(const exprt &pointer);
exprt null_object(const exprt &pointer);
 
exprt integer_address(const exprt &pointer);
exprt object_lower_bound(
  const exprt &pointer,
  const exprt &offset);
exprt object_upper_bound(
  const exprt &pointer,
  const exprt &access_size);
 
class is_invalid_pointer_exprt : public unary_predicate_exprt
{
public:
  explicit is_invalid_pointer_exprt(exprt pointer)
    : unary_predicate_exprt{ID_is_invalid_pointer, std::move(pointer)}
  {
  }
};
 
template <>
inline bool can_cast_expr<is_invalid_pointer_exprt>(const exprt &base)
{
  return base.id() == ID_is_invalid_pointer;
}
 
inline void validate_expr(const is_invalid_pointer_exprt &value)
{
  validate_operands(value, 1, "is_invalid_pointer must have one operand");
}
 
#endif // CPROVER_UTIL_POINTER_PREDICATES_H