便携性和回报 [英] portability and return

问题描述

我听说返回-1不可移植。那么在这种情况下，可移植性的答案是什么？
？那么退出（0）和退出（-1）或退出（1）怎么样？

或者最好坚持使用C'的宏，因此：


退出（EXIT_FAILURE）

退出（EXIT_SUCCESS）


比尔

I have heard that return -1 is not portable. So what would be the answer
to portability in this case? What about exit(0) and exit (-1) or exit (1)?
Or would it be best to stick with C''s macros, hence:

exit(EXIT_FAILURE)
exit (EXIT_SUCCESS)

Bill

推荐答案

在文章< 2YnWj.20544

In article <2YnWj.20544

5b3.14006@trnddc05>，

Bill Cunningham< no **** @ nspam.comwrote ：

5b3.14006@trnddc05>,
Bill Cunningham <no****@nspam.comwrote:

我听说返回-1不可移植。那么在这种情况下可移植性的答案是什么？退出（0）和退出（-1）或退出（1）怎么样？
或者最好坚持使用C'的宏，因此：

I have heard that return -1 is not portable. So what would be the answer
to portability in this case? What about exit(0) and exit (-1) or exit (1)?
Or would it be best to stick with C''s macros, hence:

>退出（EXIT_FAILURE）
退出（EXIT_SUCCESS）

>exit(EXIT_FAILURE)
exit (EXIT_SUCCESS)

最好坚持使用C'的宏。如果您使用除0或其中一个宏之外的任何值，则结果是实现

。

特别是，exit（1）是* not * C赋予的东西任何意义。

-

那么重要的是，评论家不应该拥有一个正确的抽象定义对于智力的美丽，但是某种气质，被美丽物体的存在深深感动的力量。&bbsp;            - Walter Pater

It would be best to stick with C''s macros. The results are implementation
defined if you use any value other than 0 or one of the macros.
In particular, exit(1) is *not* something that C assigns any meaning to.
--
"What is important, then, is not that the critic should possess a
correct abstract definition of beauty for the intellect, but a
certain kind of temperament, the power of being deeply moved by
the presence of beautiful objects." -- Walter Pater

Bill Cunningham写道：

Bill Cunningham wrote:

我听说返回-1不可移植。

I have heard that return -1 is not portable.

大概你在谈论main（）的返回值？

Presumably you''re talking about the return value from main()?

那么在这种情况下是可移植性的答案吗？

退出（0）和退出（-1）或退出（1）怎么样？

So what would be the answer to portability in this case?
What about exit(0) and exit (-1) or exit (1)?

退出（0）没问题。

exit(0) is fine.

或者最好坚持使用C'' s宏，因此：


退出（EXIT_FAILURE）

退出（EXIT_SUCCESS）

Or would it be best to stick with C''s macros, hence:

exit(EXIT_FAILURE)
exit (EXIT_SUCCESS)

那些也很好。


-

彼得

Those are good too.

--
Peter

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