save 5-12-22

includes/vector.hpp

@@ -1,6 +1,7 @@
 #pragma once
 #include "iterator.hpp"
 #include <memory>
+#include <stdexcept>
 
 namespace ft {
 
@@ -62,7 +63,18 @@ public:
       _alloc.deallocate(_begin, _capacity);
   }
 
-  vector                    &operator=(const vector &other);
+  vector &operator=(const vector &other) {
+    clear();
+    _alloc.deallocate(_begin, _capacity);
+    _alloc = other._alloc;
+    _capacity = other._capacity;
+    _size = other._size;
+    _begin = _alloc.allocate(_capacity);
+    for (size_type i = 0; i < _size; i++)
+      _alloc.construct(_begin + i, *(other._begin + i));
+    return (*this);
+  }
+
   void                       assign(size_type count, const T &value);
   template < class It > void assign(It first, It last);
   allocator_type             get_allocator(void) const { return _alloc; }
@@ -97,11 +109,24 @@ public:
   ft::rev_iterator< cst_iterator > rend(void) const;
 
   // CAPACITY:
-  bool      empty(void) const;
-  size_type size(void) const;
-  size_type max_size(void) const;
-  void      reserve(size_type new_cap);
-  size_type capacity(void) const;
+  bool      empty(void) const { return _size == 0; }
+  size_type size(void) const { return _size; }
+  size_type max_size(void) const { return _alloc.max_size(); }
+  void      reserve(size_type new_cap) {
+    if (new_cap > max_size())
+      throw(std::length_error("vector::reserve: new_cap > max_size"));
+    Allocator new_alloc;
+    pointer   new_begin;
+    new_begin = new_alloc.allocate(new_cap);
+    for (size_type i = 0; i < _size; i++)
+      new_alloc.construct(new_begin + i, *(_begin + i));
+    clear();
+    _alloc.deallocate(_begin, _capacity);
+    _alloc = new_alloc;
+    _begin = new_begin;
+    _capacity = new_cap;
+  }
+  size_type capacity(void) const { return _capacity; }
 
   // MODIFIERS:
   void clear(void) {
@@ -114,12 +139,11 @@ public:
   template < class It > iterator insert(cst_iterator pos, It first, It last);
   iterator                       erase(iterator pos);
   iterator                       erase(iterator first, iterator last);
-  void push_back(const T& value);
+  void                           push_back(const T &value);
   void                           pop_back(void);
   void                           resize(size_type count);
   void                           resize(size_type count, T value = T());
-  void swap( vector& other);
-
+  void                           swap(vector &other);
 };
 
 } // namespace ft