pointer_offset_size.h

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/*******************************************************************\
 
Module: Pointer Logic
 
Author: Daniel Kroening, kroening@kroening.com
 
\*******************************************************************/

 
#ifndef CPROVER_UTIL_POINTER_OFFSET_SIZE_H
#define CPROVER_UTIL_POINTER_OFFSET_SIZE_H
 
#include "irep.h"
#include "mp_arith.h"
 
#include <optional>
 
class exprt;
class namespacet;
class struct_typet;
class typet;
class member_exprt;
 
std::optional<mp_integer> member_offset(
  const struct_typet &type,
  const irep_idt &member,
  const namespacet &ns);
 
std::optional<mp_integer> member_offset_bits(
  const struct_typet &type,
  const irep_idt &member,
  const namespacet &ns);
 
std::optional<mp_integer>
pointer_offset_size(const typet &type, const namespacet &ns);
 
std::optional<mp_integer>
pointer_offset_bits(const typet &type, const namespacet &ns);
 
std::optional<mp_integer>
compute_pointer_offset(const exprt &expr, const namespacet &ns);
 
std::optional<exprt>
member_offset_expr(const member_exprt &, const namespacet &ns);
 
std::optional<exprt> member_offset_expr(
  const struct_typet &type,
  const irep_idt &member,
  const namespacet &ns);
 
std::optional<exprt> size_of_expr(const typet &type, const namespacet &ns);
 
std::optional<exprt> get_subexpression_at_offset(
  const exprt &expr,
  const mp_integer &offset,
  const typet &target_type,
  const namespacet &ns);
 
std::optional<exprt> get_subexpression_at_offset(
  const exprt &expr,
  const exprt &offset,
  const typet &target_type,
  const namespacet &ns);
 
#endif // CPROVER_UTIL_POINTER_OFFSET_SIZE_H