42_INT_11_ft_containers/templates/vector.tpp

#define VT_TPL	template <class T, class Allocator>
#define VT		vector<T, Allocator>

namespace ft {

/*********************************************
 * COPLIENS
 *********************************************/
// constructors ------------------------------
VT_TPL VT::
	vector( const Allocator & alloc )
	: _size(0)
	, _capacity(0)
	, _mem_ptr(NULL)
	, _allocator(alloc) {

	return;
}
VT_TPL VT::
	vector( size_type n, const T & val, const Allocator & alloc )
	: _size(0)
	, _capacity(0)
	, _mem_ptr(NULL)
	, _allocator(alloc) {

	assign(n, val);
	return;
}
VT_TPL template <class InputIterator> VT::
	vector(InputIterator first, InputIterator last, const Allocator & alloc)
	: _size(0)
	, _capacity(0)
	, _mem_ptr(NULL)
	, _allocator(alloc) {

	assign(first, last);
	return;
}
VT_TPL VT::
	vector( vector const & src ) {

	*this = src;
	return;
}
// destructors -------------------------------
VT_TPL VT::
	~vector() { return; }
// operator= ---------------------------------
VT_TPL VT & VT::
	operator=( vector const & rhs ) {

	//Base::operator=(rhs);
	if ( this != &rhs )
	{
		_size = rhs.size();
	}
	return *this;
}


/*********************************************
 * PUBLIC MEMBER FUNCTIONS
 *********************************************/

	/*************
	 * iterators :
	 *************/
// begin -------------------------------------
VT_TPL typename VT::iterator VT::
	begin() { return _mem_ptr; }
//const_iterator			begin() const;
// end ---------------------------------------
VT_TPL typename VT::iterator VT::
	end() { return &_mem_ptr[_size]; }
//const_iterator			end() const;
// rbegin ------------------------------------
//reverse_iterator		rbegin();
//const_reverse_iterator	rbegin() const;
// rend --------------------------------------
//reverse_iterator		rend();
//const_reverse_iterator	rend() const;

	/************
	 * capacity :
	 ************/
// size --------------------------------------
VT_TPL typename VT::size_type VT::
	size( ) const { return _size; }
// max_size ----------------------------------
VT_TPL typename VT::size_type VT::
	max_size() const { return (_allocator.max_size()); }
// resize ------------------------------------
VT_TPL void VT::
	resize(size_type n, value_type val) {

	if (n > _size)
	{
		if (n > _capacity)
			_increment_capacity(n);
		while (_size != n)
		{
			_allocator.construct(&_mem_ptr[_size], val);
			++_size;
		}
	}
	else if (n < _size)
	{
		while (_size != n)
			_allocator.destroy(&_mem_ptr[--_size]);
	}
}
// capacity ----------------------------------
VT_TPL typename VT::size_type VT::
	capacity() const { return _capacity; }
// empty -------------------------------------
VT_TPL bool VT::
	empty() const { return (_size == 0); }
// reserve -----------------------------------
VT_TPL void VT::
	reserve( size_type new_cap ) {

	value_type *	tmp_ptr;

	if (new_cap > _allocator.max_size())
		throw std::length_error("reserve: new_cap > max_size");
	if (_capacity == _allocator.max_size())
		throw std::length_error("reserve: capacity == max_size");
	if (new_cap <= _capacity)
		return ;

	_capacity = new_cap;
	tmp_ptr = _allocator.allocate(new_cap);

	if (_mem_ptr)
	{
		for (size_type i = 0; i < _size; i++)
			tmp_ptr[i] = _mem_ptr[i];
		_destroy(begin(), end());
		_allocator.deallocate(_mem_ptr, _capacity);
	}
	_mem_ptr = tmp_ptr;
}

	/******************
	 * element access :
	 ******************/
// operator[] --------------------------------
VT_TPL typename VT::reference VT::
	operator[](size_type n) { return _mem_ptr[n]; }
VT_TPL typename VT::const_reference VT::
	operator[](size_type n) const { return _mem_ptr[n]; }
// at ----------------------------------------
VT_TPL typename VT::reference VT::
	at(size_type n) {

	if (n >= _size)
		throw std::out_of_range("vector out of range");
	return (_mem_ptr[n]);
}
VT_TPL typename VT::const_reference VT::
	at(size_type n) const {

	if (n >= _size)
		throw std::out_of_range("vector out of range");
	return (_mem_ptr[n]);
}
// front -------------------------------------
VT_TPL typename VT::reference VT::
	front() { return (*_mem_ptr); }
VT_TPL typename VT::const_reference VT::
	front() const { return (*_mem_ptr); }
// back --------------------------------------
VT_TPL typename VT::reference VT::
	back() { return (_mem_ptr[_size - 1]); }
VT_TPL typename VT::const_reference VT::
	back() const { return (_mem_ptr[_size - 1]); }

	/*************
	 * modifiers :
	 *************/
// assign ------------------------------------
VT_TPL template <class InputIterator>
typename enable_if< !is_integral<InputIterator>::value,void >::type VT::
	assign( InputIterator first, InputIterator last) {

	InputIterator	tmp = first;
	unsigned int	range = 0;

	clear();

	while (tmp++ != last)
		range++;
	if (range >= _capacity)
		_increment_capacity(range);
	while (first != last)
	{
		_allocator.construct(&_mem_ptr[_size], *first);
		first++;
		_size++;
	}
}
VT_TPL void VT::
	assign( size_type n, const T & val ) {

	if (n > _allocator.max_size())
		throw std::length_error("assign: n > max_size");
	
	value_type *	tmp_ptr;

	_destroy(begin(), end());
	if (n > _capacity)
	{
		_capacity = n;
		tmp_ptr = _allocator.allocate(n);
		if (_mem_ptr)
			_allocator.deallocate(_mem_ptr, _capacity);
		_mem_ptr = tmp_ptr;
	}
	_size = n;
	while (n)
		_allocator.construct(&_mem_ptr[--n], val);
}
// push_back ---------------------------------
VT_TPL void VT::
	push_back( const value_type & element ) {

	if (_size >= _capacity)
		_increment_capacity(1);
	_allocator.construct(&_mem_ptr[_size], element);
	_size++;
}
// pop_back ----------------------------------
VT_TPL void VT::
	pop_back() { _allocator.destroy(end() - 1); _size--; }
// insert ------------------------------------
//iterator	insert(iterator position, const value_type& val);
//void		insert(iterator position, size_type n, const value_type& val);
//template <class InputIterator>
//	void	insert(iterator position, InputIterator first, InputIterator last);
// erase -------------------------------------
//iterator	erase(iterator position);
//iterator	erase(iterator first, iterator last);
// swap --------------------------------------
//void		swap(vector& x);
// clear -------------------------------------
VT_TPL void VT::
	clear() { _destroy(begin(), end()); _size = 0; }




/*********************************************
 * PRIVATE MEMBER FUNCTIONS
 *********************************************/

VT_TPL void VT::
	_destroy(iterator first, iterator last) {

	while (first != last)
	{
		_allocator.destroy(first);
		first++;
	}
}

VT_TPL void VT::
	_increment_capacity(size_type n) {

	size_type res;

	res = std::max(_size * 2, n);
	reserve(std::min(res, _allocator.max_size()));
}


/*********************************************
 * OPERATORS
 *********************************************/

//std::ostream &	operator<<(std::ostream & o, vector const & rhs)
//{
//	o << rhs.getFoo();
//	return (o);
//}


/*********************************************
 * NESTED CLASS
 *********************************************/

//void	vector::Class::function() {}


/*********************************************
 * STATICS
 *********************************************/

//std::string const	vector::_bar = "bar";

} // namespace ft

#undef VT
#undef VT_TPL