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前任老板让我帮他review文章

前任老板让我帮他review文章# Immigration - 落地生根

c*e2010-04-19 07:04

1 楼

extern const int MaxElements=10;
Which one of the following statements about the declaration in the sample
area above is true?
a) It defines a global constant variable that can be referenced from other
modules.
b) It references the global constant variable MaxElements declared in
another module.
c) It initializes a variable declared in another module.
d) It retrieves the global constant variable MaxElements declared in another
module.
e) It is only legal within an unnamed namespace.
(9_33 a32_48

l*72010-04-19 07:04

2 楼

但他只是把文章转给我，让我把review的意见发给他。这样的话，他的信能算review的
邀请信么？
他信里说我比较适合review这篇文章。
谢谢

x*y2010-04-19 07:04

3 楼

g*e2010-04-19 07:04

4 楼

no use for your GC application.

c*e2010-04-19 07:04

5 楼

not right.

【在 x***y 的大作中提到】

: b

J*i2010-04-19 07:04

6 楼

不算

【在 l****7 的大作中提到】

: 但他只是把文章转给我，让我把review的意见发给他。这样的话，他的信能算review的
: 邀请信么？
: 他信里说我比较适合review这篇文章。
: 谢谢

x*y2010-04-19 07:04

7 楼

then d? I don't quite the difference between reference and retrieve...

【在 c**********e 的大作中提到】

: not right.

l*72010-04-19 07:04

8 楼

从editor直接给你的信才算

j*i2010-04-19 07:04

9 楼

I think is a

【在 x***y 的大作中提到】

: then d? I don't quite the difference between reference and retrieve...

m*s2010-04-19 07:04

10 楼

又一个白干活的，可怜啊

x*y2010-04-19 07:04

11 楼

define? Not sure, declare seems the right word..

【在 j***i 的大作中提到】

: I think is a

j*t2010-04-19 07:04

12 楼

都是被逼的！！
已经干了好多这样的事情了。

j*i2010-04-19 07:04

13 楼

as far as I remember, not sure
In c++ , all built-in declaration is a definition,
const will result internal linkage, but extern turn it to
external linkage.

【在 x***y 的大作中提到】

: define? Not sure, declare seems the right word..

s*l2010-04-19 07:04

14 楼

先攒人品，再提出直接review要求 :)

【在 l****7 的大作中提到】

: 但他只是把文章转给我，让我把review的意见发给他。这样的话，他的信能算review的
: 邀请信么？
: 他信里说我比较适合review这篇文章。
: 谢谢

c*e2010-04-19 07:04

15 楼

This question demonstrates the use of extern and const together.
a) It defines a global constant variable that can be referenced from other
modules.
This is correct (C++ Standard 7.1.1/6). It defines a global constant variable that can be referenced from other modules.
b) It references the global constant variable MaxElements declared in
another module.
This is incorrect. The initializer makes it a definition.See other comments.
d) It retrieves the global constant variable MaxElements declared

m*n2010-04-19 07:04

16 楼

这种评审一点用都没有　我干了很多次　但不算

x*y2010-04-19 07:04

17 楼

Yes, a is correct. I first thought this is used to refer to variables in
other modules....Actually, extern here seems not necessary...

variable that can be referenced from other modules.
comments.
another

【在 c**********e 的大作中提到】

: This question demonstrates the use of extern and const together.
: a) It defines a global constant variable that can be referenced from other
: modules.
: This is correct (C++ Standard 7.1.1/6). It defines a global constant variable that can be referenced from other modules.
: b) It references the global constant variable MaxElements declared in
: another module.
: This is incorrect. The initializer makes it a definition.See other comments.
: d) It retrieves the global constant variable MaxElements declared

m*k2010-04-19 07:04

18 楼

直接跟你老板说，你需要攒评审经验，让他跟编辑推荐你审稿。
你前老板只要稍微有点人味道的，应该就会答应。
要是连这都不答应，那这人也不必帮他忙审稿了

c*e2010-04-19 07:04

19 楼

why extern not necessary? Doesn't it make the variable available to other
compilation unit?

【在 x***y 的大作中提到】

: Yes, a is correct. I first thought this is used to refer to variables in
: other modules....Actually, extern here seems not necessary...
:
: variable that can be referenced from other modules.
: comments.
: another

s*t2010-04-19 07:04

20 楼

I agree with you that extern is not necessary if a) is the answer here

【在 x***y 的大作中提到】

M*q2010-04-19 07:04

21 楼

I think extern is necessary. "const" by default has internal linkage by c++
rules. "extern" gives it external linkage so that other modules can access
the var.

【在 s*********t 的大作中提到】

: I agree with you that extern is not necessary if a) is the answer here

x*y2010-04-19 07:04

22 楼

By default, the global variable can be shared by all the translate units
except you delcare it as static...
I verified in the programme again, and extern is not necessary....In my
opinion, extern is the storage specifier, as auto, register and static; and
const is the attribute specifier, as volatile, mutable....

【在 c**********e 的大作中提到】

: why extern not necessary? Doesn't it make the variable available to other
: compilation unit?

t*t2010-04-19 07:04

23 楼

const makes namespace scope names internal linkage unless extern is
specified. (3.5 clause 3)

and

【在 x***y 的大作中提到】

: By default, the global variable can be shared by all the translate units
: except you delcare it as static...
: I verified in the programme again, and extern is not necessary....In my
: opinion, extern is the storage specifier, as auto, register and static; and
: const is the attribute specifier, as volatile, mutable....

x*y2010-04-19 07:04

24 楼

Sorry, I made a mistake. You are right. when using const, we must have
extern to make it have the external linkage.

【在 t****t 的大作中提到】

: const makes namespace scope names internal linkage unless extern is
: specified. (3.5 clause 3)
:
: and