如何捕获算术异常？ [英] how to catch the Arithmetic exception?

问题描述

我试图捕捉算术异常，但未成功。

尝试{

int a = 0，b = 9;

b = b / a;

} catch（...）{

cout<< 捕获了算术异常！ <<结束;

}


运行程序后，它退出了核心转储。

％test

算术异常（核心转储）


谁可以告诉我一个合适的方法？

I was trying to catch the Arithmetic exception, unsuccessfully.
try{
int a = 0, b = 9;
b = b / a;
}catch(...){
cout << "arithmetic exception was catched!" << endl;
}

After ran the program, it quitted with core dumped.
%test
Arithmetic exception (core dumped)

who can tell me an appropriate approach?

推荐答案

Gary .Hu写道：

Gary.Hu wrote:

我试图抓住算术异常，但没有成功。
尝试{
int a = 0，b = 9;
b = b / a;
} catch（...）{
cout<< 捕获了算术异常！ <<运行程序后，它退出了核心转储。
％test
算术异常（核心转储）

谁可以告诉我一个合适的方法？

I was trying to catch the Arithmetic exception, unsuccessfully.
try{
int a = 0, b = 9;
b = b / a;
}catch(...){
cout << "arithmetic exception was catched!" << endl;
}

After ran the program, it quitted with core dumped.
%test
Arithmetic exception (core dumped)

who can tell me an appropriate approach?

当其他所有方法都失败时，为什么不试试

catch（std :: exception& ; e）{

std :: cout<< e.what（）<< std :: endl;

}

它可能是类型std :: runtime_error的例外。


-

Emacs是一个不错的操作系统，但我更喜欢UNIX。

When all else fails, why not try
catch(std::exception& e){
std::cout << e.what() << std::endl;
}
It''s probably an exception of type std::runtime_error.

--
Emacs is a nice OS, but I prefer UNIX.

" Jacques Labuschagne" < JA ***** @ clawshrimp.com>写在消息

news：1168213.OcskaVrlgv@klesk ...

"Jacques Labuschagne" <ja*****@clawshrimp.com> wrote in message
news:1168213.OcskaVrlgv@klesk...

Gary.Hu写道：

Gary.Hu wrote:

我试图捕获算术异常，但没有成功。
尝试{
int a = 0，b = 9;
b = b / a;
} catch（...）{
cout<< 捕获了算术异常！ <<运行程序后，它退出了核心转储。
％test
算术异常（核心转储）

谁可以告诉我一个合适的方法？

I was trying to catch the Arithmetic exception, unsuccessfully.
try{
int a = 0, b = 9;
b = b / a;
}catch(...){
cout << "arithmetic exception was catched!" << endl;
}

After ran the program, it quitted with core dumped.
%test
Arithmetic exception (core dumped)

who can tell me an appropriate approach?

当其他所有方法都失败时，为什么不试试
catch（std :: exception& e）{
std :: cout<< e.what（）<< std :: endl;
}

When all else fails, why not try
catch(std::exception& e){
std::cout << e.what() << std::endl;
}

是否有任何理由为什么catch（...）不会捕获异常

由catch（std :: exception& e）捕获......？


算术异常可能是一个操作系统或处理器异常，它与b ++异常并不相同，因此无法通过

try / catch块捕获。如果你问我需要平台和/或编译器

特定结构来处理算术异常。


-

Peter van Merkerk

peter.van.merkerk（at）dse.nl

Is there any reason why catch(...) wouldn''t catch exceptions that are
catched by catch(std::exception& e)...?

"Arithmetic exception" is probably an OS or processor exception which is
not the same as a C++ exception, hence it can not be catched by a
try/catch block. If you ask me you need platform and/or compiler
specific constructs to handle "Arithmetic exceptions".

--
Peter van Merkerk
peter.van.merkerk(at)dse.nl

2003年7月21日星期一14： 45:28 -0700，Gary.Hu < hu **** @ metarnet.com>

在comp.lang.c ++中写道：

On Mon, 21 Jul 2003 14:45:28 -0700, "Gary.Hu" <hu****@metarnet.com>
wrote in comp.lang.c++:

我试图捕获算术异常，但未成功。
尝试{
int a = 0，b = 9;
b = b / a;
} catch（...）{
cout<< ; 捕获了算术异常！ <<运行程序后，它退出了核心转储。
％test
算术异常（核心转储）

谁可以告诉我一个合适的方法？

I was trying to catch the Arithmetic exception, unsuccessfully.
try{
int a = 0, b = 9;
b = b / a;
}catch(...){
cout << "arithmetic exception was catched!" << endl;
}

After ran the program, it quitted with core dumped.
%test
Arithmetic exception (core dumped)

who can tell me an appropriate approach?

这种类型的算术错误不是C ++异常，它们是未定义的行为。您的编译器可能会提供一种方法将它们转换为C ++异常，但不是必需的。


对可能发生的事情没有任何要求或保证当你

产生未定义的行为时。


-

Jack Klein

主页： http://JK-Technology.Com



comp.lang.c http：/ /www.eskimo.com/~scs/C-faq/top.html

comp.lang.c ++ http://www.parashift.com/c++-faq-lite/

alt.comp.lang .learn.c-c ++ ftp://snurse-l.org/ pub / acllc -c ++ / faq

Arithmetic errors of this type are not C++ exceptions, they are
undefined behavior. Your compiler might provide a way to turn them
into C++ exceptions, but it is not required to.

There are no requirements or guarantees on what might happen when you
generate undefined behavior.

--
Jack Klein
Home: http://JK-Technology.Com
FAQs for
comp.lang.c http://www.eskimo.com/~scs/C-faq/top.html
comp.lang.c++ http://www.parashift.com/c++-faq-lite/
alt.comp.lang.learn.c-c++ ftp://snurse-l.org/pub/acllc-c++/faq

这篇关于如何捕获算术异常？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！