“捕获" C ++上的命令 [英] "catch" command on C++

问题描述

嗨.
我在用C ++编写程序，当我从名称为"catch"的类中定义对象时，我注意到这是一个诸如"int"或"double"之类的命令.
我想了解有关捕获"的信息，因为我对此感到好奇.
谢谢.

Hi.
I was writing on c++ and when i go to define a object from a class with the name "catch", i noticed this is a command such as "int" or "double" .
I wanna informations about "catch", because i curious about it.
Thanks.

推荐答案

''catch"是保留字，用于

''catch'' is a reserved word, used in exception handling.

It allows for a function to abort processing in case of an error, in a safe manner.

When an exception is thrown, objects on the stack are properly unwound and their destructors called. The appropriate catch statement in the try / catch block is then executed to handle the error.

请参阅:
http://en.wikipedia.org/wiki/Structured_exception_handling [ http://en.wikipedia.org/wiki/Barbara_Liskov [

Please see:
http://en.wikipedia.org/wiki/Structured_exception_handling[^].

This is one of the most fundamental and important inventions in programming of all times and peoples, mostly pioneered by Barbara Liskov at al (http://en.wikipedia.org/wiki/Barbara_Liskov[^]).

Today, anyone using any imperative of functional programming but not using or understanding this part of technology cannot be considered as a software developer, software engineer or a programmer. Not in any sense. Never. Not in any circumstances. Learn it now. Learn it very well. No excuses. This is not hard to learn.

—SA

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