C++ function naming principles: How to make function names follow specifications?

C Function naming principles require that function names accurately describe function behavior, be concise and clear, use verb forms, avoid underscores, do not use keywords, and can contain parameter and return value information. Following these principles improves the readability and maintainability of your code.

C function naming principles: write standardized function names

Introduction

Function names in C programming It plays a vital role in the function, which can intuitively express the role of the function and improve the readability and maintainability of the code. In order to ensure that function names follow specifications and form good programming habits, this article will discuss the naming principles of C functions.

Principle

1. Descriptive

The function name should accurately describe the function and behavior of the function, and try to avoid using vague terms or common name. For example, calculate_area() is more descriptive than compute().

2. Concise

Function names should be concise and easy to understand and remember. Avoid using lengthy names or abbreviations, but don’t oversimplify them so that the meaning is unclear.

3. Use verbs

Function names usually use verb form to express the operation or task performed by the function. For example, sort(), find(), erase().

4. Avoid using underscores

Underscores in C are usually used for member variables, and using underscores in function names can cause confusion. It is recommended to use camel case naming, such as calculateArea().

5. Avoid using keywords

Function names should not use C reserved keywords to avoid conflicts with built-in functions or types.

6. Consider parameters and return values

The function name can consider information containing necessary parameters or return values, which helps to quickly understand the input and output relationship of the function. For example, calculate_area(double radius), find_max(const std::vector<int>& numbers).

Practical case

The following are examples of function names that follow naming principles:

// 计算圆的面积
double calculate_circle_area(double radius);

// 在 vector 中找到最大值
int find_max_in_vector(const std::vector<int>& numbers);

// 清空 vector 中的内容
void clear_vector(std::vector<int>& numbers);

// 数组反转
void reverse_array(int arr[], int size);

Conclusion

Following C function naming principles can write clear and standardized code, improving code readability and maintainability. By carefully considering factors such as the function's purpose, parameters, and return values, you can create function names that are descriptive and easy to understand.

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