我想在C ++ 2009中看到两件事 [英] Two things I'd like to see in C++ 2009

问题描述

我知道RAII和BS对先前请求的回应，但我真的很想看到'b $ b'喜欢在C ++异常处理中看到''finally''。是的，我们可以在没有''终于'的情况下生活
但是这意味着更多的打字（更多课程）

简单的场景（比如在函数前调用LeaveCriticalSection（））

返回）。它还可以将其他语言移植到C ++中更简单。


我想看到的另一件事是''可重入''关键字可以是

应用于函数和方法。当非重入函数被标记为可重入时，编译器应该具有投诉所需的所有信息

。

I know about RAII and BS''s response to previous requests, but I''d really
love to see ''finally'' available in C++ exception handling. Yes, we can
live without ''finally'' but it means a bit more typing (more classes) for
simple scenarios (like calling LeaveCriticalSection() before a function
returns). It would also make porting other languages to C++ a bit more
simple.

Another thing I''d like to see is a ''reentrant'' keyword that can be
applied to functions and methods. The compiler should have all the info
necessary to complain when a non-reentrant function is labeled as reentrant.

推荐答案

J.史密斯写道：

另一件我想看到的是一个''reentrant''关键字，可以应用于函数和方法。当非重入函数被标记为
可重入时，编译器应该具有所需的所有信息。

Another thing I''d like to see is a ''reentrant'' keyword that can be
applied to functions and methods. The compiler should have all the info
necessary to complain when a non-reentrant function is labeled as
reentrant.

那么编译器将如何识别不可重入的功能？


-

Joe Seigh


当你拿柠檬时，你做柠檬水。

当你拿到硬件时，就会制作软件。

So how would the compiler identify a non-reentrant function?

--
Joe Seigh

When you get lemons, you make lemonade.
When you get hardware, you make software.

Joe Seigh写道：

Joe Seigh wrote:

J. Smith写道：

J. Smith wrote:

我想看到的另一件事是一个''reentrant''关键字，可以应用于函数和方法。当非重入函数被标记为
可重入时，编译器应该具有必要的所有信息。

Another thing I''d like to see is a ''reentrant'' keyword that can be
applied to functions and methods. The compiler should have all the info
necessary to complain when a non-reentrant function is labeled as
reentrant.

那么编译器如何识别非可重入函数？

So how would the compiler identify a non-reentrant function?

它不使用静态或全局变量。但是一个新关键字是

''不成比例''。

It uses no static or global variables. But a new keyword is
''disproportionate''.

J.史密斯写道：

我知道RAII和BS对先前请求的回应，但我真的很想看到终于在C ++异常处理中可用。

I know about RAII and BS''s response to previous requests, but I''d really
love to see ''finally'' available in C++ exception handling.

您可能对RAII不太了解（足够）。否则你不会想要一个''终于''。

You probably don''t know (enough) about RAII. Otherwise you wouldn''t
want a ''finally''.

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