去 [英] goto

问题描述

我知道我知道这很糟糕！我不想用它。我在想，

它还存在吗？如果确实如此，我真的不明白怎么做！？喜欢什么

如果你只是转到一个函数的中途（没有正确的对象构建！）或构造函数本身？或者
只是好奇!!


迈克

Hi,
I know I know its notoriously bad! I don''t want to use it. I was wondering,
does it still exist? If it does, I really don''t understand how!? like what
happens if you just goto halfway through a function (no objects properly
constructed!) , or a constructor itself??
Just intrigued!!

Mike

推荐答案

*迈克尔：

是的。


如果确实如此，我真的不明白怎么做！？


像往常一样。


喜欢什么如果你只是在功能中途转到（没有正确的对象）
构建！），


§6.6.4/ 3禁止;它不会或不应该编译。


或构造函数本身？


？


只是好奇!!

I know I know its notoriously bad! I don''t want to use it. I was wondering,
does it still exist?
Yes.

If it does, I really don''t understand how!?
Like always.

like what
happens if you just goto halfway through a function (no objects properly
constructed!) ,
That is forbidden by §6.6.4/3; it won''t or shouldn''t compile.

or a constructor itself??
?

Just intrigued!!

当你了解更多你在所有语言中都会发现更多不安全的结构。


-

答：因为它弄乱了人们通常阅读文本的顺序。

问：为什么这么糟糕？

A：热门发布。

问：usenet上最烦人的事情是什么并在电子邮件中？

As you learn more you''ll find many more unsafe constructs, in all languages.

--
A: Because it messes up the order in which people normally read text.
Q: Why is it such a bad thing?
A: Top-posting.
Q: What is the most annoying thing on usenet and in e-mail?

迈克尔写道：

Michael wrote:

我知道我知道这很糟糕！


长期功能不好。短的没有理由使用''goto''，因此

''goto''相对无害。

我不想用它。我在想，它还存在吗？如果确实如此，我真的不明白怎么做！？喜欢什么
如果你只是转到一个函数的中途（没有正确构造的对象！），或构造函数本身？

I know I know its notoriously bad!
Long functions are bad. Short ones have no reason to use ''goto'', and thus
''goto'' is relatively harmless.
I don''t want to use it. I was wondering,
does it still exist? If it does, I really don''t understand how!? like what
happens if you just goto halfway through a function (no objects properly
constructed!) , or a constructor itself??

通常，不应该通过但我的编译器喜欢它来学习C ++定律。


在这种情况下，一个小小的VC ++实验很有用：


goto bar;

string foo;

bar：;


错误C2362：''foo''的初始化是跳过''goto bar''


语言设计师负责处理它。由于没有传统的C构造函数支持
，他们的编程器拒绝（相对）非结构化的''goto''

滥用。


-

Phlip
http://industrialxp.org/community/bi...UserInterfaces

" Alf P. Steinbach" ; <人*** @ start.no>在消息中写道

news：42 **************** @ news.individual.net ...

"Alf P. Steinbach" <al***@start.no> wrote in message
news:42****************@news.individual.net...

*迈克尔：

我知道我知道这很糟糕！我不想用它。我是b $ b想知道，它还存在吗？

I know I know its notoriously bad! I don''t want to use it. I was wondering, does it still exist?
Yes.

如果确实如此，我真的不明白怎么做！？

If it does, I really don''t understand how!?

像往常一样。

Like always.

喜欢什么如果你只是在功能中途转到（没有对象正确<构造！），

like what
happens if you just goto halfway through a function (no objects properly
constructed!) ,

§6.6.4/ 3禁止这样做;它不会或不应该编译。

That is forbidden by §6.6.4/3; it won''t or shouldn''t compile.

那么你可以''转到''''的限制是什么？

本地范围？

so what are the limits on what you can ''goto'' ''to'' ?
local scope?

或构造函数本身？

or a constructor itself??
?

只是好奇!!

当你了解更多时，你会发现更多不安全的结构，所有

As you learn more you''ll find many more unsafe constructs, in all

语言。
-
答：因为它弄乱了人们通常阅读文字的顺序。
问：为什么这是一件坏事？
答：热门帖子。
问：什么usenet和电子邮件中最烦人的事情是什么？

languages.
--
A: Because it messes up the order in which people normally read text.
Q: Why is it such a bad thing?
A: Top-posting.
Q: What is the most annoying thing on usenet and in e-mail?

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