调试程序测试malloc 跟 free是否配对

调试程序测试malloc 和 free是否配对

#include <stdio.h>
#include <stdlib.h> 
void * debug_malloc(size_t size, const char *file, int line, const char *func)
{         
	void *p;       
  p = malloc(size);     
	printf("%s:%d:%s:malloc(%ld): p=0x%lx\n", file, line, func, size, (unsigned long)p);
	return p; 
}
#define malloc(s) debug_malloc(s, __FILE__, __LINE__, __func__) 

#define free(p)  do {        \  
        printf("%s:%d:%s:free(0x%lx)\n", __FILE__, __LINE__,            \   
       __func__, (unsigned long)p);         \      
       free(p);                  \ 
} while (0)
 intmain(int argc, char *argv[])
{         
	char *p;         
	p = malloc(1024);         
	free(p);         
	return 0;
}

 [root@localhost test]# gcc mallo_free.c
[root@localhost test]# ./a.out
mallo_free.c:19:main:malloc(1024): p=0x2575010
mallo_free.c:20:main:free(0x2575010)