mallpc free 错误定位

#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)

int

main(int argc, char *argv[])

{

char *p;

p = malloc(1024);

free(p);

return 0;

}