/** \file helpers.hpp
 *
 * Declaration of some auxiliary functions for memory dis-/allocation and so on
 */

#ifndef HELPERS_HPP_
#define HELPERS_HPP_

using namespace std;

/*********************************************** includes ***********************************/

// include config.h
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include <fstream>

#include "Helpers/defs.hpp"
#include "CodePatterns/Log.hpp"

/********************************************** definitions *********************************/

/********************************************** helpful functions *********************************/

// taken out of TREMOLO
/*@-namechecks@*/
#ifndef __GNUC__
# undef __attribute__
# define __attribute__(x)
#endif
/*@=namechecks@*/

/* Behandelt aufgetretene Fehler. error ist der Fehlertyp(enum Errors)
   void *SpecialData ist ein untypisierter Zeiger auf Spezielle Daten zur Fehlerbehandlung.
   Man koennte auch noch einen Zeiger auf eine Funktion uebergeben */
extern void /*@exits@*/ debug(const char *output);
  //__attribute__ ((__return__));
#define debug(data) debug_in((data), __FILE__, __LINE__)

extern void /*@exits@*/ debug_in(const char *output,
    const char *file, const int line);
  //__attribute__ ((__return__));

typedef enum {
  Minus = -1,
  Zero = 0,
  Plus = +1
} sign_t;

char *FixedDigitNumber(const int FragmentNumber, const int digits);
void performCriticalExit();
sign_t sign(double value);

/********************************************** helpful template functions *********************************/


#define PLURAL_S(v) (((v)==1)?"":"s")

// this is to allow different modes of access for
// maps and sets
template<typename Res,typename T>
struct _take{
  Res get(T value) const;
};

// if we have a set,vector etc we can directly access the result
template<typename Res>
struct _take<Res,Res>{
  static inline Res get(Res value){
    return value;
  }
};

// if we have a map we have to access the second part of
// the pair
template<typename Res,typename T1>
struct _take<Res,std::pair<T1,Res> >{
  static inline Res get(std::pair<T1,Res> value){
    return value.second;
  }
};

#endif /*HELPERS_HPP_*/