#include<stdio.h>
#include<stdlib.h>
#include<string.h>
#include<malloc.h>
int main(void)
{
int *str1 = NULL;
int *str2 = NULL;
str1 = (int*)malloc(2*1024*sizeof(char));
if(str1==NULL)
{
printf("malloc error!\n");
return -1;
}
printf("malloc: %p\n", str1);
str2 = (int*)realloc(str1,6*1024*sizeof(char));
if(str2==NULL)
{
printf("realloc error!\n");
return -1;
}
printf("realloc: %p\n",str2);
free(str2);
return 0;
}
使用malloc分别分配2KB的空间,然后用realloc调整为6KB的内存空间,打印指针地址
原文:http://blog.csdn.net/u013012494/article/details/39370825