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This article mainly explains "what problems should be paid attention to in the process of C++ programming", 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 problems you should pay attention to in the process of C++ programming.

Developing a good programming habit not only contributes to the reliability and readability of the code, but also avoids unnecessary bug in the coding process. Here are some tips and problems that you should pay attention to in C++ programming:

1. Give the variable a meaningful name (according to the usual naming convention), which makes the code easier to understand.

two。 For variables such as int, float, double, and so on, be sure to initialize.

3. Be sure to initialize the pointer to NULL or a valid address, such as the address returned by the operator new.

4. When using an array, never cross its boundaries. Crossing array boundaries is called a buffer overflow and can lead to security vulnerabilities.

5. It is best not to use C-style strings (char*) or functions such as strelen () and strcopy (). Std::string is more secure and provides many useful methods.

6. Static arrays are used only when determining the number of elements to include. If you are not sure, you should use dynamic arrays such as std::vector.

7. Don't assume that the operator new will definitely succeed. For code that allocates resources, be sure to handle the exceptions it may throw. Put it in the try block and write the corresponding catch () block.

8. When you have a choice, it is best to use templates rather than macros. Templates are not only generic, but also type-safe.

9. Instead of using raw pointers, you should use appropriate smart pointers as much as possible.

10. If you write long lambda expressions, you should consider using function objects instead, because function objects are reusable and there is only one place to maintain.

11. When writing utility classes that manage dynamic arrays, it is important to implement mobile constructors and mobile assignment operators to improve performance.

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