memory_debugging.h File Reference

Various macros useful for communicating with memory debuggers, such as Valgrind. More...

#include <string.h>

Go to the source code of this file.

Macros
#define	MEM_MALLOCLIKE_BLOCK(p1, p2, p3, p4)
#define	MEM_FREELIKE_BLOCK(p1, p2)
#define	MEM_UNDEFINED(a, len)   ((void)0)
#define	MEM_DEFINED_IF_ADDRESSABLE(a, len)   ((void)0)
#define	MEM_NOACCESS(a, len)   ((void)0)
#define	MEM_CHECK_ADDRESSABLE(a, len)   ((void)0)

Functions
void	TRASH (void *ptr, size_t length)
	Put bad content in memory to be sure it will segfault if dereferenced. More...

Detailed Description

Various macros useful for communicating with memory debuggers, such as Valgrind.

Macro Definition Documentation

MEM_CHECK_ADDRESSABLE

#define MEM_CHECK_ADDRESSABLE	(		a,
			len
	)		((void)0)

MEM_DEFINED_IF_ADDRESSABLE

#define MEM_DEFINED_IF_ADDRESSABLE	(		a,
			len
	)		((void)0)

MEM_FREELIKE_BLOCK

#define MEM_FREELIKE_BLOCK	(		p1,
			p2
	)

Value:

  do {                             \
  } while (0)

MEM_MALLOCLIKE_BLOCK

#define MEM_MALLOCLIKE_BLOCK	(		p1,
			p2,
			p3,
			p4
	)

Value:

  do {                                       \
  } while (0)

MEM_NOACCESS

#define MEM_NOACCESS	(		a,
			len
	)		((void)0)

MEM_UNDEFINED

#define MEM_UNDEFINED	(		a,
			len
	)		((void)0)

Function Documentation

TRASH()

void TRASH ( void *  ptr, size_t  length  )

inline

Put bad content in memory to be sure it will segfault if dereferenced.

With Valgrind, verify that memory is addressable, and mark it undefined.