指针运算的结构 [英] Pointer arithmetic for structs

问题描述

由于包含一张双人床和3个int变量（4个变量在所有）一个结构的定义，如果p是一个指针，这个结构用一个值为0x1000，并p ++有什么价值呢？

这是不是一门功课的问题，所以不用担心。我只是想以prepare一个测试，我想不通这种做法的问题。谢谢

这是C.是的，我想p的值就递增了。这是一个32位的机

解决方案

 结构foobar的* P;
P = 0×1000;
p ++;
 

是相同的

 结构foobar的* P;
P = 0×1000 +的sizeof（结构FOOBAR）;
 

Given a struct definition that contains one double and three int variables (4 variables in all), if p is a pointer to this struct with a value 0x1000, what value does p++ have?

This is not a homework problem, so don't worry. I'm just trying to prepare for a test and I can't figure out this practice problem. Thanks

This is in C. Yes I want the value of p after it is incremented. This is a 32-bit machine

解决方案

struct foobar *p;
p = 0x1000; 
p++;

is the same as

struct foobar *p;
p = 0x1000 + sizeof(struct foobar);

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