More CScriptSpecialFunction; start rstl::map/red_black_tree

Former-commit-id: 87c0a6041c

include/rstl/red_black_tree.hpp

@@ -3,6 +3,8 @@
 
 #include "types.h"
 
+#include "rstl/rmemory_allocator.hpp"
+
 namespace rstl {
 template < typename P >
 struct select1st {};
@@ -10,7 +12,45 @@ struct select1st {};
 template < typename T >
 struct less {};
 
-template < typename T, typename P, int U, typename S = select1st< P >, typename Cmp = less< T > >
-class red_black_tree {};
+enum node_color {
+  kNC_Red,
+  kNC_Black,
+};
+
+template < typename T, typename P, int U, typename S = select1st< P >, typename Cmp = less< T >,
+           typename Alloc = rmemory_allocator >
+class red_black_tree {
+private:
+  struct node {
+    node_color mColor;
+    node* mParent;
+    node* mLeft;
+    node* mRight;
+    P mValue;
+  };
+  struct header {};
+
+public:
+  struct const_iterator {
+    node* mNode;
+    const header* mHeader;
+
+    const P* operator->() const { return &mNode->mValue; }
+    bool operator==(const const_iterator& other) const {
+      return mNode == other.mNode && mHeader == other.mHeader;
+    }
+    bool operator!=(const const_iterator& other) const {
+      return mNode != other.mNode || mHeader != other.mHeader;
+    }
+  };
+
+private:
+  u8 x0_;
+  u8 x1_;
+  uint x4_;
+  uint x8_;
+  uint xc_;
+  uint x10_;
+};
 }; // namespace rstl
 #endif