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/*    Copyright (C) 2011  Nicola Corti

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.

                 For further information, Nicola Corti - <cortin [at] cli.di.unipi.it>
*/

#ifndef __MACROS_H
#define __MACROS_H

#include <stdlib.h>
#include <errno.h>


#define MALLOC_ERRNO(dest, number, elem, flag, correctvalue, falsevalue)\
 if ((flag) == (correctvalue))\
        { \
                if(((dest) = malloc((number) * sizeof(elem))) == NULL)\
                 {errno = ENOMEM; (flag) = (falsevalue);}\
  }
                                                                                                                                                                                                                                                                 
                                                        

  
/* ====== NOTA ====== 
        
        Per convenzione, la variabile flag per la MALLOC_ERRNO si chiamera' "mem_flag"
        
        Come valore correct consideriamo 0, e come falsevalue consideriamo 1

        Questo al fine di agevolare la leggibilita' del codice
*/
  
  
#endif