How to Document Errno Value With Doxygen?

To document errno values with Doxygen, you can use the @errno command followed by a brief description of the error code. For example, you can place the @errno EACCES command above a function or data member that may return the errno value for "Permission denied". This will generate a documentation entry for the errno value in the generated HTML or PDF output, providing information on what the error code represents and when it may be returned. This can help other developers understand the possible error scenarios in your code and how to handle them appropriately.

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How to format error number values in doxygen comments?

You can format error number values in doxygen comments by using the \c command.

For example, if you wanted to specify error number 404 in a comment, you could do it like this:

\code /**

• This function returns an error code.
• Possible error codes include:
• \c 404 - Not Found
• \c 500 - Internal Server Error */ int getErrorCode(); \endcode

This will render the error numbers in a monospaced font, making them stand out in the comment.

What is the structure of errno value documentation in doxygen?

In Doxygen, the documentation for errno values typically follows a specific structure that includes:

1. Header: The documentation will begin with a header indicating that it is documenting errno values. This header may include a brief description of what errno values are and how they are used in programming.
2. List of errno values: The documentation will then list out the various errno values that are commonly used in the programming language or system being documented. Each errno value will be accompanied by a brief description of what it represents and when it might be encountered.
3. Usage examples: The documentation may also include usage examples to demonstrate how errno values can be used in code and how to check for specific errno values in error-handling routines.
4. Additional information: Depending on the complexity of the errno values being documented, the documentation may also include additional information such as references to related functions or system calls, explanations of specific error conditions, and tips for handling errno values in different scenarios.

Overall, the structure of errno value documentation in Doxygen is designed to provide a comprehensive and easy-to-understand reference for developers working with errno values in their code.

How to create a separate section for errno value in doxygen?

To create a separate section for errno values in Doxygen, you can use the \addtogroup command to group related items together. Here is an example of how you can create a separate section for errno values in Doxygen:

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/**
 * @defgroup errno errno values
 * This section defines the errno values used in the system.
 */

/**
 * @brief Description of errno value.
 * @ingroup errno
 */
#define EPERM 1

/**
 * @brief Description of errno value.
 * @ingroup errno
 */
#define ENOENT 2

// Add more errno values here...

/**
 * Main function of the program.
 */
int main() {
    // Code that sets errno and uses it
    return 0;
}

In the example above, the \defgroup command is used to create a group called "errno values" where all related errno values will be placed. Each errno value is then documented using the \brief command and is assigned to the group "errno" using the \ingroup command.

This will create a separate section in the Doxygen documentation for errno values, making it easier for users to locate and understand the available errno values in the system.

How to group errno value documentation under a specific category in doxygen?

To group errno value documentation under a specific category in doxygen, you can use the \addtogroup command to create a group for the errno values. Here's an example of how you can do this:

1. In your source code, create a section for documenting the errno values and add \addtogroup to create a group for them:

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/**
 * @defgroup ErrnoValues Errno Values
 * @brief Group containing documentation for errno values.
*/

/**
 * @defgroup ErrnoValues Codes
 * @{
 */

// Document individual errno values here

/// @}

1. In the Doxygen configuration file, add the group name to the EXCLUDE_SYMBOLS option to exclude the errno values from the global namespace:

1

EXCLUDE_SYMBOLS = ErrnoValues

1. Generate the Doxygen documentation and you should see the errno values grouped under the specified category in the documentation.

By following these steps, you can group errno value documentation under a specific category in Doxygen.

What is the syntax for documenting errno value with doxygen?

To document the errno value in a function using Doxygen, you can use the \return tag along with the errno value. Here is an example of the syntax:

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/**
 * @brief Function description
 * @return The errno value set by the function
 */
int myFunction();

In this example, the function myFunction is documented with a brief description and the \return tag specifies that the function returns the errno value set by the function.