Considerations for return value types in C++ function naming

In C, the return value type in function naming should follow the following principles: Non-void return type: Include the return value type (for example: GetStringLength(size_t)). void return type: does not include the return value type (for example: PrintInteger(void)). Doing so improves readability, maintainability, and clarity, and allows deviations from these guidelines in special cases.

#C Consideration of return value type in function naming

An important factor in determining a function name is its return value type. Choosing wisely can enhance the readability, maintainability, and clarity of your code.

General Guidelines

• For functions with non-void return types, include the return value type in the function name.
• For functions with a void return type, do not include the return value type in the function name.

Practical case

Example 1: Non-void return type

// 获取字符串长度
size_t GetStringLength(const std::string& str);

In this example, GetStringLength The function returns a value of type size_t, indicating the length of the string. Therefore, include the Get prefix in the function name, followed by the return value type.

Example 2: void return type

// 打印一个整数
void PrintInteger(int num);

PrintInteger The function has no return value. Therefore, there is no need to include the return type in the function name.

Advantages

This naming convention provides the following advantages:

• ##Readability:Through the reading function You can easily understand its return value type by name.
• Maintainability: When you need to modify the return value type of a function, you can easily update the function name to make it consistent with the return value type.
• Clarity: It helps to distinguish functions with the same name, especially when they have different return value types.

Exceptions

Some situations may require deviation from these general guidelines:

• Self-documenting functions Type: If the function type definition contains return type information (for example: std::function), you may not need to include the return type in the function name.
• Language convention: Some programming languages ​​have different conventions for function naming, such as Pascal nomenclature in Java.

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