find and iterator stuff done kinda

Map.hpp

@@ -20,7 +20,10 @@ private:
 public:
   // TODO: Iterator functionality
   class Iterator {
+  public:
     using underlying = typename std::vector<std::optional<ValueType>>::iterator;
+
+  private:
     underlying store_iter;
 
   public:
@@ -28,8 +31,11 @@ public:
     Iterator(underlying iter) : store_iter{iter} {}
   };
   class ConstIterator {
+  public:
     using underlying =
         typename std::vector<std::optional<ValueType>>::const_iterator;
+
+  private:
     underlying store_iter;
 
   public:
@@ -37,7 +43,10 @@ public:
     ConstIterator(underlying iter) : store_iter{iter} {}
   };
   class ReverseIterator {
+  public:
     using underlying = typename std::vector<std::optional<ValueType>>::iterator;
+
+  private:
     underlying store_iter;
 
   public:
@@ -57,28 +66,57 @@ public:
   bool empty() const { return this->store.empty(); }
   // TODO: iterator creation
   Iterator begin() {
-    Key_T const &start =
-        std::min_element(store.begin(), store.end(),
-                         [](std::optional<ValueType> const &lhs,
-                            std::optional<ValueType> const &rhs) {
-                           if (lhs.has_value() != rhs.has_value()) {
-                             return lhs.has_value();
+    std::size_t start = 0;
+    while (2 * (start - store.begin()) + 1 < store.size()) {
+      store = 2 * store + 2;
+    }
+    return Iterator(store.cbegin() + start);
+  }
+  Iterator end() { return Iterator(store.end()); }
+  ConstIterator begin() const {
+    std::size_t start = 0;
+    while (2 * (start - store.begin()) + 1 < store.size()) {
+      store = 2 * store + 2;
+    }
+    return ConstIterator(store.cbegin() + start);
+  }
+  ConstIterator end() const { return ConstIterator(store.cend()); }
+  ConstIterator cbegin() const { return this->begin(); }
+  ConstIterator cend() const { return this->end(); }
+  ReverseIterator rbegin() {
+    std::size_t start = 0;
+    while (2 * (start - store.begin()) + 1 < store.size()) {
+      store = 2 * store + 2;
+    }
+    return ReverseIterator(store.begin() + start);
+  }
+  ReverseIterator rend() { return ReverseIterator(store.end()); }
+  Iterator find(const Key_T &key) {
+    std::size_t idx = 0;
+    while (store[idx].first != key) {
+      if (idx >= store.size()) {
+        return this->end();
+      }
+      if (store[idx].first < key) {
+        idx = idx * 2 + 1;
+      } else {
+        idx = idx * 2 + 2;
+      }
+    }
+  }
+  ConstIterator find(const Key_T &key) const {
+    std::size_t idx = 0;
+    while (store[idx].first != key) {
+      if (idx >= store.size()) {
+        return this->end();
+      }
+      if (store[idx].first < key) {
+        idx = idx * 2 + 1;
+      } else {
+        idx = idx * 2 + 2;
+      }
     }
-
-                           return lhs.value().first < rhs.value().first;
-                         })
-            ->first;
-    return Iterator(*this, start);
   }
-  Iterator end() { std::optional return Iterator(*this, ); }
-  ConstIterator begin() const { return ConstIterator(*this, ); }
-  ConstIterator end() const { return this->cbegin(); }
-  ConstIterator cbegin() const { return this->cend(); }
-  ConstIterator cend() const { return ConstIterator(*this, ); }
-  ReverseIterator rbegin() { return Iterator(*this, ); }
-  ReverseIterator rend() { return Iterator(*this, ); }
-  Iterator find(const Key_T &) {}
-  ConstIterator find(const Key_T &) const;
   Mapped_T &at(const Key_T &key) {}
   const Mapped_T &at(const Key_T &key) const {}
   Mapped_T &operator[](const Key_T &) {}
@@ -111,6 +149,6 @@ public:
     return !(lhs == rhs);
   }
   // TODO < operator
-  friend bool operator<(const Map &lhs, const Map &rhs) {}
+  friend bool operator<(const Map &lhs, const Map &rhs) { return false; }
 };
 } // namespace cs440