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/* Chrysalide - Outil d'analyse de fichiers binaires
* alloc.c - gestion particulière des allocations
*
* Copyright (C) 2018 Cyrille Bagard
*
* This file is part of Chrysalide.
*
* Chrysalide 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.
*
* Chrysalide 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 Chrysalide. If not, see <http://www.gnu.org/licenses/>.
*/
#include "alloc.h"
#include <malloc.h>
/******************************************************************************
* *
* Paramètres : ptr = pointeur à traiter. *
* allocated = taille actuellement allouée. [OUT] *
* needed = taille finale nécessaire. *
* *
* Description : Assure qu'une zone de mémoire allouée a la taille requise. *
* *
* Retour : Pointeur à utiliser avec assurance. *
* *
* Remarques : - *
* *
******************************************************************************/
void *ensure_allocation_size(void *ptr, size_t *allocated, size_t needed)
{
void *result; /* Pointeur à renvoyer */
if (needed < *allocated)
result = ptr;
else
{
*allocated = needed;
result = realloc(ptr, needed);
}
return result;
}
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