转换：errno =>例外 [英] conversion: errno => exception

问题描述

你知道一个类库，它可以转换标准头文件errno.h中列出的错误/返回代码

。进入一个

众所周知的异常层次结构？

是否有人从std：runtime_error中获取它？


问候，

Markus

Do you know a class library that can convert the error/return codes
that are listed in the standard header file "errno.h" into a
well-known exception hierarchy?
Did anybody derive it from "std:runtime_error"?

Regards,
Markus

推荐答案

* Markus Elfring：

* Markus Elfring:

你知道一个类库可以吗？转换标准头文件errno.h中列出的错误/返回代码
进入一个众所周知的异常层次结构？
是否有人从std：runtime_error中派生出来？

Do you know a class library that can convert the error/return codes
that are listed in the standard header file "errno.h" into a
well-known exception hierarchy?
Did anybody derive it from "std:runtime_error"?

为什么你想要一个层次结构？ ？


关闭袖口：


void throwStdIoError（）

{

throw std :: runtime_error（std :: strerror（std :: errno））;

}

-

答：因为它混乱人们通常阅读文字的顺序。

问：为什么这么糟糕？

A：热门帖子。

问：usenet和电子邮件中最烦人的事情是什么？

Why do you want a hierarchy?

Off the cuff:

void throwStdIoError()
{
throw std::runtime_error( std::strerror( std::errno ) );
}
--
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?

Alf P. Steinbach写道：

Alf P. Steinbach wrote:

* Markus Elfring：

* Markus Elfring:

你知道一个类库，它可以转换标准头文件errno.h中列出的错误/返回代码
。进入一个众所周知的异常层次结构？
是否有人从std：runtime_error中获取它？

Do you know a class library that can convert the error/return codes
that are listed in the standard header file "errno.h" into a
well-known exception hierarchy?
Did anybody derive it from "std:runtime_error"?

为什么你想要一个层次结构？

关闭袖口：

void throwStdIoError（）
抛出std :: runtime_error（std :: strerror（std :: errno））;
}

Why do you want a hierarchy?

Off the cuff:

void throwStdIoError()
{
throw std::runtime_error( std::strerror( std::errno ) );
}

捕获异常的函数很难找到实际上错误的内容。

。 />

It would be quite hard for the function that catches the exception to find
out what the error actually is.

* Rolf Magnus：

* Rolf Magnus:

Alf P. Steinbach写道：

Alf P. Steinbach wrote:

* Markus Elfring ：

* Markus Elfring:

你知道一个类库，它可以转换标准头文件errno.h中列出的错误/返回代码
。进入一个众所周知的异常层次结构？
是否有人从std：runtime_error中获取它？

Do you know a class library that can convert the error/return codes
that are listed in the standard header file "errno.h" into a
well-known exception hierarchy?
Did anybody derive it from "std:runtime_error"?

为什么你想要一个层次结构？

关闭袖口：

void throwStdIoError（）
抛出std :: runtime_error（std :: strerror（std :: errno））;
}

Why do you want a hierarchy?

Off the cuff:

void throwStdIoError()
{
throw std::runtime_error( std::strerror( std::errno ) );
}

捕获异常的函数很难找到错误实际上是什么。

It would be quite hard for the function that catches the exception to find
out what the error actually is.

如果它不在投掷电话的范围内，它为什么要关心？


-

答：因为它弄乱了人们通常阅读文字的顺序。

问：为什么这么糟糕？

A：热门帖子。

问：usenet和电子邮件中最烦人的是什么？

If it''s not within the context of the throwing call, why should it care?

--
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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