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发表于 2022-10-15 21:00:43 | 显示全部楼层 |阅读模式

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int a[4]={1,2,3,4};
     int *ptr1=(int *)(&a+1);
     int *ptr2=(int *)((int)a+1);
int *ptr2=(int *)((int)a+1)他的这个把a的首元素地址转化成int 是指的什么?
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发表于 2022-10-15 21:21:28 | 显示全部楼层
本帖最后由 jhq999 于 2022-10-16 07:32 编辑

在a地址上右移了一个字节
*ptr2=0x02000000
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发表于 2022-10-15 21:48:43 | 显示全部楼层
int *ptr2=(int *)((int)a+1)他的这个把a的首元素地址转化成int 是指的什么?  (int *)((int)a+1)是让ptr2指向a[0]的第二个字节,此时打印的内容就是ptr2所指向的往后4个字节的内容了,也就是a{0}的后三个字节和a[1]的第一个字节
具体你可以看这个说的很清楚
https://blog.csdn.net/qq_43295866/article/details/97016939
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发表于 2022-10-16 00:54:26 | 显示全部楼层
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