*d++ = *s++# JobHunting - 待字闺中
r*c
1 楼
why *d is evaluate first then ++? In the precedence table it shows ++ (
postfix) is higher than dereference.
postfix) is higher than dereference.
z*g
2 楼
It's easy to confuse operator precedence with order of evaluation. Operator
precedence only decides how operators match with operands, not the order
they are evaluated.
You are correct that the precedence of postfix is higher than dereference.
But that only tells you *d++ should be *(d++) but not (*d)++. This does not
conflict with the fact that postfix is evaluated after the statement.
Hope that helps.
precedence only decides how operators match with operands, not the order
they are evaluated.
You are correct that the precedence of postfix is higher than dereference.
But that only tells you *d++ should be *(d++) but not (*d)++. This does not
conflict with the fact that postfix is evaluated after the statement.
Hope that helps.
r*c
3 楼
So this means it's equivalent to
*d = *s;
d++;
s++;
right?
*d = *s;
d++;
s++;
right?
z*g
4 楼
Yes. That is correct.
r*c
5 楼
Thanks! Yesterday I had a phone interview with Google.
The interviewer thought it's wrong to use *d++ = *s++ to do copy as ++ will
happen before *. Shall I find a way to tell him? (via recruiter). Will
that have any influence on his decision?
The interviewer thought it's wrong to use *d++ = *s++ to do copy as ++ will
happen before *. Shall I find a way to tell him? (via recruiter). Will
that have any influence on his decision?
p*y
6 楼
这代码风格不好啊。表达式有副作用，而且是容易弄错的副作用。多写一两行少很多歧
义。
will
【在 r**c 的大作中提到】
: Thanks! Yesterday I had a phone interview with Google.
: The interviewer thought it's wrong to use *d++ = *s++ to do copy as ++ will
: happen before *. Shall I find a way to tell him? (via recruiter). Will
: that have any influence on his decision?
义。
will
【在 r**c 的大作中提到】
: Thanks! Yesterday I had a phone interview with Google.
: The interviewer thought it's wrong to use *d++ = *s++ to do copy as ++ will
: happen before *. Shall I find a way to tell him? (via recruiter). Will
: that have any influence on his decision?
N*D
7 楼
这真有人考啊？回字的四种写法？
s*x
8 楼
面试千万不要写这种code.
To me, this is only used in the famous string Copy:
While ( *d++=*s++);
To me, this is only used in the famous string Copy:
While ( *d++=*s++);
相关阅读
Homecox OJ BBS上线有没有类似google desktop的file search tool请问oracle的stock option是怎么操作的？contractor皮包公司说给办绿卡，可信度高吗?Senior Process Development Engineer (转载)要毕业的fresh student的面试高峰期会在什么时候呢？[zz]最后一点关于Amazon的事求big fish game内推LeetCode Java Solution?OPT期间被雷, 如何用cap-gap OPT 以及H1b transfer 要多长时间Level of U.S. government security clearanceOnsite归来求祝福面FLG这样的软件公司，background到底起多大作用？报一个F家offer及流水账Google Intern Interview Fail, 投Full Time Position的冷冻期多长在Startup 要个什么Title 比较合适 (转载)Apple 股票今天大跌，怎么回事？ (转载)你们面完都是怎么知道feedback的？还有人和我一样还在等H1结果么？请问关于G家面试结果。。。。。。。。。。。。。。