Attempt att correct documentation

Doxyfile

@@ -1,6 +1,10 @@
-PROJECT_NAME = MyProject
+PROJECT_NAME = CTree
-PROJECT_NUMBER = 1.0
+PROJECT_NUMBER = $(PROJECT_NUMBER)
 INPUT = src
+RECURSIVE = YES
+EXTRACT_ALL = YES
+INPUT += README.md
+USE_MDFILE_AS_MAINPAGE = README.md
 OUTPUT_DIRECTORY = docs
 #EXCLUDE = /path/to/exclude/directory
 

Makefile

@@ -1,6 +1,8 @@
 # Compiler
 CC := gcc
 
+GITHASH := $(shell git rev-parse --short HEAD)
+
 # Compiler flags
 CFLAGS := -Wall -Wextra -Wpedantic -std=c2x
 
@@ -44,7 +46,7 @@ clean:
 	rm -rf $(BUILD_DIR) $(TARGET)
 
 docs:
-	doxygen Doxyfile
+	PROJECT_NUMBER=git-$(GITHASH) doxygen Doxyfile
 
 cppcheck:
 	cppcheck --enable=all --inconclusive --std=c11 --language=c --platform=unix64 --suppress=missingIncludeSystem $(SRCS)

README.md

@@ -0,0 +1,3 @@
+# CTree Example Project
+
+Sample project for the CTree library. Testing out writing C with best practices in mind.

src/main.c

@@ -7,6 +7,15 @@
 #define ANSI_COLOR_RED "\x1b[31m"
 #define ANSI_COLOR_RESET "\x1b[0m"
 
+/**
+ * @brief Assert a condition
+ * @details If the condition is false, print an error message
+ *          and exit the program
+ *
+ * @param condition The condition to assert
+ * @param message The message to print if the condition is false
+ * @return 0 if the condition is true
+ */
 int assert(bool condition, const char *message) {
   if (!condition) {
     printf(ANSI_COLOR_RED "Assertion failed: %s\n" ANSI_COLOR_RESET, message);

src/tree.h

@@ -5,20 +5,37 @@
 #include <stdio.h>
 #include <stdlib.h>
 
-// A regular node with a left and right branch
+/**
+ * @brief A node in a binary tree
+ * @details A node in a binary tree has some data
+ *          and can have a left and right branch
+ */
 struct Node {
+  /** @brief The data of the node */
   int data;
-  struct Node *left, *right;
+
+   /** @see Node */
+  struct Node *left;
+
+  /** @see Node */
+  struct Node *right;
 };
 typedef struct Node Node;
 
-// Represents a tree with a root node
+/** @brief Represents a tree with a root node */
 struct Tree {
+  /** @brief The root node of the tree */
   Node *root;
 };
 typedef struct Tree Tree;
 
-// Insert some data into the tree
+/**
+ * @brief Insert some data into the tree
+ * 
+ * @param tree 
+ * @param data 
+ * @return * Insert 
+ */
 int tree_insert(Tree *tree, int data);
 
 // Remove some data from the tree