Add headers, clang-format, decompctx.py & more

include/rstl/pointer_iterator.hpp

@@ -0,0 +1,55 @@
+#ifndef _RSTL_POINTER_ITERATOR_HPP
+#define _RSTL_POINTER_ITERATOR_HPP
+
+#include "types.h"
+
+#include "construct.hpp"
+
+namespace rstl {
+template < typename T, typename Vec, typename Alloc >
+class const_pointer_iterator {
+protected:
+  const T* current;
+
+public:
+  const_pointer_iterator() : current(nullptr) {}
+  const_pointer_iterator(const T* begin) : current(begin) {}
+  void operator++() { ++current; }
+  void operator--() { --current; }
+  T* get_pointer() const { return const_cast< T* >(current); }
+  const T& operator*() const { return *get_pointer(); }
+  const T* operator->() const { return get_pointer(); }
+  bool CheckValid() const { return current != nullptr; }
+  bool operator==(const const_pointer_iterator& other) { return current == other.current; }
+  bool operator!=(const const_pointer_iterator& other) { return current != other.current; }
+
+  friend const_pointer_iterator operator+(const const_pointer_iterator& x, int v) { return const_pointer_iterator(x.current + v); }
+  friend const_pointer_iterator operator-(const const_pointer_iterator& x, int v) { return const_pointer_iterator(x.current - v); }
+};
+
+template < typename T, typename Vec, typename Alloc >
+class pointer_iterator : public const_pointer_iterator< T, Vec, Alloc > {
+public:
+  pointer_iterator() : const_pointer_iterator(nullptr) {}
+  pointer_iterator(T* begin) : const_pointer_iterator(begin) {}
+  void operator=(const T& other) {
+    if (CheckValid()) {
+      *get_pointer() = other;
+    }
+  }
+  T* get_pointer() const { return const_cast< T* >(current); }
+  // T* operator*() const { if (CheckValid()) return get_pointer(); else return
+  // nullptr; }
+  T* operator->() const { return get_pointer(); }
+  void destroy() const {
+    if (CheckValid()) {
+      rstl::destroy(get_pointer());
+    }
+  }
+
+  friend pointer_iterator operator+(const pointer_iterator& x, int v) { return pointer_iterator(x.get_pointer() + v); }
+  friend pointer_iterator operator-(const pointer_iterator& x, int v) { return pointer_iterator(x.get_pointer() - v); }
+};
+} // namespace rstl
+
+#endif