eurephia_nullsafe.h

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/* eurephia_nullsafe.h
 *
 *  standard C string functions, which is made NULL safe by checking
 *  if input value is NULL before performing the action.
 *
 *  GPLv2 only - Copyright (C) 2008 - 2010
 *               David Sommerseth <dazo@users.sourceforge.net>
 *
 *  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; version 2
 *  of the License.
 *
 *  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, write to the Free Software
 *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 *
 */

#include <eurephia_context.h>

#ifndef         EUREPHIA_NULLSAFE_H_
#define         EUREPHIA_NULLSAFE_H_

#define atoi_nullsafe(str) (str != NULL ? atoi(str) : 0)


#define strdup_nullsafe(str) (str != NULL ? strdup(str) : NULL)


#define append_str(dest, src, size) strncat(dest, src, (size - strlen_nullsafe(dest)))


#define strlen_nullsafe(str) (str != NULL ? strlen(str) : 0)



void *_malloc_nullsafe(eurephiaCTX *, size_t, const char *, int);

#define malloc_nullsafe(ctx, sz) _malloc_nullsafe(ctx, sz, __FILE__, __LINE__)


void inline _free_nullsafe(eurephiaCTX *ctx, void *ptr, const char *file, int line);

#define free_nullsafe(ctx, ptr) { _free_nullsafe(ctx, ptr, __FILE__, __LINE__); ptr = NULL; }


#define defaultValue(str, defstr) (strlen_nullsafe(str) == 0 ? defstr : str)


#define defaultIntValue(ival, defval) (ival == 0 ? defval : ival)
#endif      /* !EUREPHIA_NULLSAFE_H_ */