意外的结果 [英] unexpected result
问题描述
嗨
看看这段代码
包含< stdio.h>
int main(void)
{
int i,j = 2;
i = j ++ * ++ j * j ++;
printf(" ;%d%d,i,j);
返回0;
}
acc。对我来说i&的价值观j分别为27,5和这是正确的,因为我在turbo c ++编译器上运行了这个,但如果我在lcc-win32编译器上运行它
我得到32& 5对于i&分别为。
为什么会这样呢
hi
look at this code
include <stdio.h>
int main(void)
{
int i,j=2;
i=j++ * ++j * j++;
printf("%d %d",i,j);
return 0;
}
acc. to me the values of i & j are 27,5 respectively & rightly so as i
ran this on turbo c++ compiler but if i ran this on lcc-win32 compiler
i got 32 & 5 for i & j respectively.
why this is so
推荐答案
hi anshu
所有编译器依赖者
in lcc-win32编译器
首先代码从右到左运行
表示i = 4 * 4 * 2
它为我提供32
但在turboc编译器中它从左到右执行代码并取大价值
其中就是3
所以它给它27.
再见
Ankur
ashu写道:
hi anshu
it all compiler depenedent
in lcc-win32 compiler
first the code run on right to left
means i=4*4*2
it give 32 for i
but in turboc compiler it execute code left to right and take big value
among it i.e. 3
so thats y its give 27.
bye
Ankur
ashu wrote:
嗨
看看这段代码
包含< stdio.h>
int main(无效)
{
int i,j = 2 ;
i = j ++ * ++ j * j ++;
printf("%d%d",i,j);
返回0;
}
acc。对我来说i&的价值观j分别为27,5和这是正确的,因为我在turbo c ++编译器上运行了这个,但如果我在lcc-win32编译器上运行它
我得到32& 5对于i&分别为。
为什么会这样?
hi
look at this code
include <stdio.h>
int main(void)
{
int i,j=2;
i=j++ * ++j * j++;
printf("%d %d",i,j);
return 0;
}
acc. to me the values of i & j are 27,5 respectively & rightly so as i
ran this on turbo c++ compiler but if i ran this on lcc-win32 compiler
i got 32 & 5 for i & j respectively.
why this is so
ashu写道:
ashu wrote:
hi
看看这段代码
包含< stdio.h>
int main(void)
{
int i,j = 2;
i = j ++ * ++ j * j ++;
hi
look at this code
include <stdio.h>
int main(void)
{
int i,j=2;
i=j++ * ++j * j++;
未定义的行为:请参阅常见问题解答。
(非正式地说,你以随机顺序更新j三次;
你为什么期望结果有意义?除了它更糟糕
之外。)
-
Chris" sparqling" Dollin
你服务的对象是谁,你信任谁?
Undefined behaviour: see the FAQ.
(Informally speaking, you update j three times in random order;
why do you expect the result to make sense? Except it''s worse
than that.)
--
Chris "sparqling" Dollin
"Who do you serve, and who do you trust?"
嗨极客,
请告诉我哪本书给出了C和C ++动态内存管理的完整
详细信息。
Hi geeks,
Please tell me which book gives the complete
detail of dynamic memory management in C and C++.
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