In addition to Weibo, there is also WeChat
Please pay attention
WeChat public account
Shulou
2025-09-24 Update From: SLTechnology News&Howtos shulou NAV: SLTechnology News&Howtos > Internet Technology >
Share
Shulou(Shulou.com)06/01 Report--
This article mainly explains "what to do if C++ cannot throw an exception". Interested friends may wish to have a look. The method introduced in this paper is simple, fast and practical. Next, let the editor take you to learn "what if C++ can't throw an exception?"
E.26: if an exception cannot be thrown, handle the failure as soon as possible
Reason (reason)
If you can't do a good job at recovering, at least you can get out before too much consequential damage is done.
If you can't recover well from your mistakes, at least you can quit before more harm occurs.
Note (Note)
If you cannot systematically handle errors, think of "failure" as a response to any errors that cannot be dealt with locally. That is, if you can't recover from the error in the context of the function that detected the problem, you can call the about function, the quick_exit () function, or similar function that can trigger a system restart.
In a system that contains a lot of tasks or a large number of computers, you already need to anticipate and deal with fatal failures (including hardware errors). In such cases, "failure" simply transfers error handling to the next layer of the system.
Example (sample)
Void f (int n)
{
/ /...
P = static_cast (malloc (n * sizeof (X)
If (! P) abort (); / / abort if memory is exhausted
/ /...
}
Most programs cannot handle memory exhaustion gracefully anyway. This is roughly equivalent to
Most programs can't handle memory exhaustion satisfactorily. This is almost equivalent to the following code:
Void f (int n)
{
/ /...
P = new X [n]; / / throw if memory is exhausted (by default, terminate)
/ /...
}
Typically, it is a good idea to log the reason for the "crash" before exiting.
Usually, it's a good idea to record the reason before quitting because of a "failure".
At this point, I believe you have a deeper understanding of "what if C++ cannot throw an exception". You might as well do it in practice. Here is the website, more related content can enter the relevant channels to inquire, follow us, continue to learn!
Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.
Views: 0
*The comments in the above article only represent the author's personal views and do not represent the views and positions of this website. If you have more insights, please feel free to contribute and share.
The market share of Chrome browser on the desktop has exceeded 70%, and users are complaining about
The world's first 2nm mobile chip: Samsung Exynos 2600 is ready for mass production.According to a r
A US federal judge has ruled that Google can keep its Chrome browser, but it will be prohibited from
Continue with the installation of the previous hadoop.First, install zookooper1. Decompress zookoope
About us Contact us Product review car news thenatureplanet
More Form oMedia: AutoTimes. Bestcoffee. SL News. Jarebook. Coffee Hunters. Sundaily. Modezone. NNB. Coffee. Game News. FrontStreet. GGAMEN
© 2024 shulou.com SLNews company. All rights reserved.