How to Document Errno Value With Doxygen?

To document the errno value with Doxygen, you can include relevant information in the comments section of your code. Describe the possible error codes that can be returned by a specific function and explain their corresponding meanings. You can also provide examples of how to handle these error codes in the code itself. Make sure to use clear and concise language in your documentation to assist other developers who may be working with your code. Additionally, you can utilize Doxygen's special syntax such as \return, \param, and \sa to further enhance the readability and organization of your documentation. By properly documenting the errno value in your code, you can help improve its usability and maintainability for yourself and others.

How to document errno macro with doxygen?

To document the errno macro with Doxygen, you can use the \def command to define the macro and provide a description of its purpose and usage. Here's an example of how you can document the errno macro in your code:

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/**
 * @def errno
 *
 * The @c errno macro is a global variable that is used to store the error code of the last failed function call.
 * It is set to a non-zero value when a function encounters an error, and can be checked by the caller to determine the nature of the error.
 */

In this documentation comment, you can provide a brief description of what the errno macro is used for and how it can be utilized in the code. You can also include any additional information about its usage and behavior that would be helpful for developers using your code.

After documenting the errno macro in your code, you can run the Doxygen tool on your source files to generate the documentation output. The generated documentation will include information about the errno macro, allowing developers to easily understand its purpose and usage in the codebase.

What is the significance of including errno in doxygen output?

Including errno in the doxygen output can be significant for documenting error handling in a program. By documenting the possible values that errno can hold in different situations, developers can better understand how to handle errors and troubleshoot issues that arise during execution. This can also help in improving the overall robustness and reliability of the software by ensuring that errors are properly handled and not ignored. Additionally, documenting errno in the doxygen output can also serve as a helpful reference for future developers who may need to work on the code and understand its error handling logic.

How to comment on errno value with doxygen?

To comment on errno value with Doxygen, you can use the \sa (see also) or \par (paragraph) command to provide additional information. For example:

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/*!
  \brief Check the errno value to determine the error.
  \sa https://man7.org/linux/man-pages/man3/errno.3.html
  \par
  Possible values of errno:
  - EPERM: Operation not permitted
  - ENOENT: No such file or directory
  - EACCES: Permission denied
*/
void checkErrno() {
  // implementation here
}

By using these commands, you can provide a brief explanation of the function and then specify additional information about the possible errno values for the users of your code.

What is the best practice for documenting errno in doxygen?

The best practice for documenting errno in Doxygen is to provide a brief description of the errno value being documented, along with any relevant information about its possible values and causes. Additionally, it is recommended to include code examples or references to the specific functions or modules that may set or retrieve the errno value.

Here is an example of how to document errno in Doxygen:

/**

• @brief Error number for file operations.
• The errno value provides information about any errors that occur during file operations.
• Possible values include EACCES (permission denied), ENOENT (no such file or directory),
• and EIO (input/output error).
• @see open(), close(), read(), write() */

By following these guidelines, you can ensure that the documentation for errno is clear, informative, and helpful for other developers who may need to work with error handling in your codebase.

What is the recommended format for documenting errno using doxygen comments?

The recommended format for documenting errno using doxygen comments is:

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/**
 * @brief Description of the errno value.
 * 
 * This function sets errno to the specified value and returns -1.
 * 
 * @param value The errno value to set.
 * 
 * @return -1 and sets errno to the specified value.
 */