yspkm · November 24, 2023 12:20 · Nov 24, 2023
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+# How to Use Doxygen to Generate Documentation for C++ Code
+
+## Introduction
+Doxygen is a documentation generator for various programming languages, including C++. This guide will show you how to use Doxygen to generate documentation for a C++ project in a structured and readable format.
+
+## Step 1: Install Doxygen
+Ensure that Doxygen is installed on your system. You can download it from the [official website](http://www.doxygen.nl/).
+
+## Step 2: Create a Doxygen Configuration File
+Navigate to your project's root directory in your command line interface and run the following command to create a default configuration file:
+
+```bash
+doxygen -g
+```
+
+This command will generate a file named `Doxyfile` in your project directory.
+
+## Step 3: Configure the `Doxyfile`
+Open the `Doxyfile` with a text editor and set the following options:
+
+```plaintext
+PROJECT_NAME           = "My Project"
+OUTPUT_DIRECTORY       = ./docs
+GENERATE_HTML          = YES
+GENERATE_LATEX         = YES
+INPUT                  = ./src
+RECURSIVE              = YES
+FILE_PATTERNS          = *.cc *.hh
+EXTRACT_ALL            = YES
+```
+
+Adjust the `INPUT` path to where your source files are located.
+
+## Step 4: Annotate Your Source Code
+Add annotations to your `test.hh` header file:
+
+```cpp
+/**
+ * @file test.hh
+ * @brief Header file for the Test class.
+ */
+
+/**
+ * @class Test
+ * @brief A test class.
+ *
+ * More detailed class description.
+ */
+class Test {
+    public:
+        Test(); /**< Constructor for Test class. */
+        int doSomething(int param); /**< Does something. */
+};
+```
+
+And to your `test.cc` source file:
+
+```cpp
+#include "test.hh"
+
+/**
+ * @brief Constructs a new Test object.
+ */
+Test::Test() {
+    // Constructor implementation
+}
+
+/**
+ * @brief A method that does something.
+ * @param param Description of the parameter.
+ * @return Description of the return value.
+ */
+int Test::doSomething(int param) {
+    // Method implementation
+    return 0;
+}
+```
+
+## Step 5: Run Doxygen
+In the command line interface, navigate to your project directory where the `Doxyfile` is located and run:
+
+```bash
+doxygen Doxyfile
+```
+
+Doxygen will process the annotated source files and generate documentation in the `docs` directory.
+
+## Step 6: Review Generated Documentation
+After Doxygen has finished, open the `index.html` file in the `docs/html` directory with a web browser to view the documentation.
+
+## Step 7: Generate PDF Documentation (Optional)
+If you have LaTeX installed, navigate to the `docs/latex` directory and run:
+
+```bash
+make
+```
+
+This will compile the LaTeX files into a PDF.
+
+## Conclusion
+You have successfully generated documentation for your C++ project using Doxygen. The documentation is available in HTML and optionally in PDF format.
+
+Please note that the actual commands and file paths might need to be adjusted according to your specific environment and project setup. This guide provides a general structure to help you document your C++ project with Doxygen.