locals.h

Go to the documentation of this file.

/*******************************************************************\
 
Module: Local variables whose address is taken
 
Author: Daniel Kroening
 
Date: March 2013
 
\*******************************************************************/
 
 
#ifndef CPROVER_ANALYSES_LOCALS_H
#define CPROVER_ANALYSES_LOCALS_H
 
#include <iosfwd>
#include <unordered_set>
 
#include <util/irep.h>
 
class goto_functiont;
 
class localst
{
public:
  explicit localst(const goto_functiont &goto_function)
  {
    build(goto_function);
  }
 
  void output(std::ostream &out) const;
 
  // Returns true for all procedure-local variables,
  // not including those with static storage duration,
  // but including the function parameters.
  bool is_local(const irep_idt &identifier) const
  {
    return locals.find(identifier) != locals.end();
  }
 
  typedef std::unordered_set<irep_idt> locals_sett;
  locals_sett locals;
 
protected:
  void build(const goto_functiont &goto_function);
};
 
inline std::ostream &operator<<(
  std::ostream &out, const localst &locals)
{
  locals.output(out);
  return out;
}
 
#endif // CPROVER_ANALYSES_LOCALS_H