Commit f7600a71 authored by JP Dinger's avatar JP Dinger

Introduce realloc_or_free(), which does what realloc() does but will free the...

Introduce realloc_or_free(), which does what realloc() does but will free the argument if the reallocation fails. This is useful in some, but not all, use cases of realloc().
parent 27e9a1b0
* vlc_memory.h: Memory functions
* Copyright (C) 2009 the VideoLAN team
* Authors: JP Dinger <jpd at videolan dot org>
* 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 2 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
* 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.
#ifndef VLC_MEMORY_H
#define VLC_MEMORY_H 1
* \file
* This file deals with memory fixups
* \defgroup memory Memory
* @{
* This wrapper around realloc() will free the input pointer when
* realloc() returns NULL. The use case ptr = realloc(ptr, newsize) will
* cause a memory leak when ptr pointed to a heap allocation before,
* leaving the buffer allocated but unreferenced. vlc_realloc() is a
* drop-in replacement for that use case (and only that use case).
static inline void *realloc_or_free( void *p, size_t sz )
void *n = realloc(p,sz);
if( !n )
return n;
* @}
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