Shulou(Shulou.com)06/02 Report--

This article introduces the knowledge of "what are the features cited in C++". Many people will encounter such a dilemma in the operation of actual cases, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!

This article just wants to talk about the features of references, not the use of references.

For the focus of the reference, it is as follows:

Reference-when initializing, it is convenient for a variable to be bound, after which is the alias of this variable, and the binding relationship will not change. There are two key points, one is binding, the other is alias, once the binding relationship is determined, it will not be changed, and the future use will only be used as an alias.

Examples are as follows:

1. Reference-when initializing, you must establish a binding relationship with another variable.

two。 Once the reference-establishes a binding relationship with a variable, the relationship will not be changed, for example, int&b = a

3. The = operation referenced later is treated as a modification of the reference value, such as b = c; the binding relationship does not change.

The output is as follows:

Int&b = a; after that, the addresses of an and b are the same, and they are all addresses of a.

Even though the address of b remains the same, the address of b still points to a, but the value of b is changed to 10 at the same time. This means that this operation is only the most normal assignment operation.

This is the end of the content of "what are the features referenced in C++". Thank you for reading. If you want to know more about the industry, you can follow the website, the editor will output more high-quality practical articles for you!

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.