xmemory.h

A re-cap of the memory management macros discussed in the previous sections, without any of the debugging versions is shown below:

xmemory.h

	#ifndef H_xmemory
	#define H_xmemory
	
	#include <stdlib.h>
	#include <string.h>
	
	#define xalloc(_t)		((_t*)malloc(sizeof(_t)))
	#define xnalloc(_t,_n)		((_t*)malloc(sizeof(_t)*(_n)))
	#define xalloc0(_t)		((_t*)calloc(sizeof(_t), 1))
	#define xnalloc0(_t,_n)		((_t*)calloc(sizeof(_t),(_n)))
	#define xvalloc(_t1,_t2,_n)	((_t1*)malloc(sizeof(_t1)+((_n)-1)*sizeof(t2)))
	#define xfree(_t,_p)		free(_p)
	#define xnfree(_t,_n,_p)	free(_p)
	#define xvfree(_t1,_t2,_n,_p)	free(_p)
	
	#if( SUPPORTS_ALLOCA )
	
	#define xalloc_stack(_t)	((_t*)alloca(sizeof(_t)))
	#define xnalloc_stack(_t,_n)	((_t*)alloca(sizeof(_t)*(_n)))
	#define xalloc0_stack(_t)	\
		((_t*)memset( (void*)alloca(sizeof(_t)) ,0,sizeof(_t)))
	#define xnalloc0_stack(_t,_n)	\
		((_t*)memset( (void*)alloca(sizeof(_t)*(_n)) ,0,sizeof(_t)*(_n)))
	#define xfree_stack(_t,_p)	((void)0)
	#define xnfree_stack(_t,_n,_p)	((void)0)
	
	#else
	
	#define xalloc_stack(_t)	xalloc(_t)
	#define xnalloc_stack(_t,_n)	xnalloc(_t,_n)
	#define xalloc0_stack(_t)	xalloc0(_t)
	#define xnalloc0_stack(_t,_n)	xnalloc0(_t,_n)
	#define xfree_stack(_t,_p)	xfree(_t,_p)
	#define xnfree_stack(_t,_n,_p)	xnfree(_t,_n,_p)
	
	#endif
	
	#endif