From fa60aae63b4e2c743627741bb4ca10eb4f12bb80 Mon Sep 17 00:00:00 2001
From: kdx <kdx.42@42l.fr>
Date: Mon, 16 Jan 2023 09:15:00 +0100
Subject: iterators

---
 main.cpp   |  31 ++++++++++------
 vector.hpp | 122 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++----
 2 files changed, 134 insertions(+), 19 deletions(-)

diff --git a/main.cpp b/main.cpp
index bd8c700..c9fd62e 100644
--- a/main.cpp
+++ b/main.cpp
@@ -1,24 +1,33 @@
 #include "vector.hpp"
+#include <vector>
 #include <iostream>
+#include <algorithm>
+
+using namespace ft;
+
+void print(const int& n)
+{
+	std::cout << n << std::endl;
+}
 
 int main()
 {
-	ft::vector<int> vec(10);
-	ft::vector<int> other(vec);
+	vector<int> vec(10);
+	vector<int> other(vec);
 	vec = other;
-	std::cout << (vec == other) << std::endl;
-	other.assign(ft::vector<int>::size_type(5), 3);
-	for (ft::vector<int>::size_type i = 0; i < other.size(); i++)
-		std::cout << other.at(i) << std::endl;
-	std::cout << std::endl;
+	other.assign(vector<int>::size_type(5), 3);
 	other.push_back(6);
 	other.push_back(8);
-	for (ft::vector<int>::size_type i = 0; i < other.size(); i++)
-		std::cout << other.at(i) << std::endl;
+	std::for_each(other.begin(), other.end(), print);
+	std::cout << std::endl;
+	const vector<int> constvec(other);
+	std::for_each(constvec.rbegin(), constvec.rend(), print);
 	std::cout << std::endl;
 	other.pop_back();
-	for (ft::vector<int>::size_type i = 0; i < other.size(); i++)
-		std::cout << other.at(i) << std::endl;
+	std::for_each(other.begin(), other.end(), print);
+	std::cout << std::endl;
+	std::cout << "comparaisons" << std::endl;
+	std::cout << (vec == other) << std::endl;
 	std::cout << (vec == other) << std::endl;
 	return 0;
 }
diff --git a/vector.hpp b/vector.hpp
index b63d6b8..1dc82d6 100644
--- a/vector.hpp
+++ b/vector.hpp
@@ -25,8 +25,8 @@ namespace ft {
 	bool operator<=(const vector<T,Alloc>& lhs,
 	                const vector<T,Alloc>& rhs);
 	template<class T, class Alloc>
-	bool operator>(const ft::vector<T,Alloc>& lhs,
-	               const ft::vector<T,Alloc>& rhs);
+	bool operator>(const vector<T,Alloc>& lhs,
+	               const vector<T,Alloc>& rhs);
 	template<class T, class Alloc>
 	bool operator>=(const vector<T,Alloc>& lhs,
 	                const vector<T,Alloc>& rhs);
@@ -41,11 +41,77 @@ public:
 	typedef value_type& reference;
 	typedef const value_type& const_reference;
 	typedef typename Allocator::pointer pointer;
-	/* TODO */
-	typedef vector* iterator;
-	typedef vector* const_iterator;
-	typedef vector* reverse_iterator;
-	typedef vector* const_reverse_iterator;
+	typedef T* iterator;
+	typedef T* const_iterator;
+	class reverse_iterator {
+	private:
+		T* _ptr;
+	public:
+		reverse_iterator(T* ptr) : _ptr(ptr)
+		{
+		}
+		reference operator*()
+		{
+			return *_ptr;
+		}
+		T* operator->()
+		{
+			return _ptr;
+		}
+		reverse_iterator& operator++()
+		{
+			_ptr--;
+			return *this;
+		}
+		reverse_iterator& operator++(int)
+		{
+			reverse_iterator tmp (*this);
+			_ptr--;
+			return tmp;
+		}
+		reverse_iterator operator--()
+		{
+			_ptr++;
+			return *this;
+		}
+		reverse_iterator operator--(int)
+		{
+			reverse_iterator tmp (*this);
+			_ptr++;
+			return tmp;
+		}
+		reverse_iterator& operator+=(difference_type n)
+		{
+			*this = *this - n;
+			return *this;
+		}
+		reverse_iterator operator+(difference_type n)
+		{
+			reverse_iterator tmp (*this);
+			tmp += n;
+			return tmp;
+		}
+		reverse_iterator operator-(difference_type n)
+		{
+			reverse_iterator tmp (*this);
+			tmp -= n;
+			return tmp;
+		}
+		reverse_iterator& operator-=(difference_type n)
+		{
+			*this = *this + n;
+			return *this;
+		}
+		bool operator==(const reverse_iterator& other) const
+		{
+			return _ptr == other._ptr;
+		}
+		bool operator!=(const reverse_iterator& other) const
+		{
+			return !(*this == other);
+		}
+	};
+	typedef const reverse_iterator const_reverse_iterator;
 private:
 	size_type _size;
 	size_type _capacity;
@@ -199,7 +265,47 @@ public:
 		return _data;
 	}
 
-	/* ITERATORS TODO */
+	/* ITERATORS */
+	iterator begin()
+	{
+		return _data;
+	}
+
+	const_iterator begin() const
+	{
+		return _data;
+	}
+
+	iterator end()
+	{
+		return _data + _size;
+	}
+
+	const_iterator end() const
+	{
+		return _data + _size;
+	}
+
+	reverse_iterator rbegin()
+	{
+		return _data + _size - 1;
+	}
+
+	const_reverse_iterator rbegin() const
+	{
+		return _data + _size - 1;
+	}
+
+	reverse_iterator rend()
+	{
+		return _data - 1;
+	}
+
+	const_reverse_iterator rend() const
+	{
+		return _data - 1;
+	}
+
 	/* CAPACITY */
 	bool empty() const
 	{
-- 
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