What are the advantages and disadvantages of the universal header file in C language?

The universal header file in C language refers to a header file that contains commonly used functions, macro definitions, and other content to simplify code writing and improve code reusability. Below are its advantages and disadvantages:

Advantages:

1. Simplify code writing: universal header files can consolidate the definition and declaration of commonly used functions and macros, allowing programmers to write code more concisely without the need for repeating the same code.
2. Improving code readability: By using universal header files, common code logic can be encapsulated in one place, making the code structure clearer and easier to understand.
3. Improve code maintainability: Universal header files can centralize commonly used function codes, reducing the workload of modifying or updating these codes as only one file needs to be modified.
4. Improve code reusability: Code in universal header files can be used in different programs, increasing code reusability and reducing redundancy.

downsides:

1. Increased compilation time: Due to the possibility of including a large amount of code in universal header files, when these header files are imported into multiple source files, the compiler needs to repeatedly compile this code, thus increasing compilation time.
2. Increasing the memory usage of a program: If a program utilizes a large number of universal header files, it can result in an increase in memory usage, especially in environments with limited resources such as embedded systems, which could potentially lead to a decrease in system performance.
3. Possible naming conflicts may arise: The universal header file may define a large number of macros and functions. If uniqueness in naming is not paid attention to, it may lead to naming conflicts, resulting in compilation errors or program logic errors.
4. Difficult to maintain: When the code in the universal header file needs to be modified or upgraded, it may involve modifying multiple source files, making maintenance difficult and requiring careful consideration of the scope of the changes.