itpp::Circular_Buffer< T > Class Template Reference

General circular buffer class. More...

#include <itpp/base/circular_buffer.h>

List of all members.

Public Member Functions
	Circular_Buffer ()
	Default constructor.
	Circular_Buffer (int n)
	Create a Circular_Buffer of size n.
	Circular_Buffer (const Circular_Buffer< T > &s)
	Create a copy of s.
virtual	~Circular_Buffer ()
	Default destructor.
void	put (const T &in)
	Write the element in to the buffer.
void	put (const Vec< T > &in)
	Write the vector of elements in to the circular buffer.
void	put (const Array< T > &in)
	Write the vector of elements in to the circular buffer.
void	get (T &out)
	Get the oldest element in the circular buffer.
T	get ()
	Get the oldest element in the circular buffer.
void	get (Vec< T > &out, const int N=-1)
	Get the N oldest element in the circular buffer. N=-1 returns all elements in the buffer.
void	get (Array< T > &out, const int N=-1)
	Get the N oldest element in the circular buffer. N=-1 returns all elements in the buffer.
void	peek (T &out) const
	Peek at the oldest element in the circular buffer, without removing it.
T	peek () const
	Peek at the oldest element in the circular buffer, without removing it.
void	peek (const int index, T &out) const
	Peek at the element with index index in the circular buffer, without removing it.
void	peek (Vec< T > &out, const int N=-1) const
	Peek at the N first elements of the circular buffer, without removing them. N=-1 peeks all elements in the buffer.
void	peek (const ivec &index, Vec< T > &out) const
	Peek at the elements with index index in the circular buffer, without removing them.
void	peek (Array< T > &out, const int N=-1) const
	Peek at the N first elements of the circular buffer, without removing them. N=-1 peeks all elements in the buffer.
void	peek (const ivec &index, Array< T > &out) const
	Peek at the elements with index index in the circular buffer, without removing them.
void	peek_reverse (T &out) const
	Peek at the latest element in the circular buffer, without removing it.
T	peek_reverse () const
	Peek at the latest element in the circular buffer, without removing it.
void	peek_reverse (Vec< T > &out, const int N=-1) const
	Peek at the N latest elements of the circular buffer in reverse order, without removing them. N=-1 returns all elements in the buffer.
void	peek_reverse (Array< T > &out, const int N=-1) const
	Peek at the N latest elements of the circular buffer in reverse order, without removing them. N=-1 returns all elements in the buffer.
void	clear ()
	Empty the circular buffer.
void	operator= (const Circular_Buffer< T > &s)
	Assignment operator.
int	size () const
	Returns the maximum number of data elements the circular buffer can store.
int	nrof_elements () const
	Returns the number of data elements currently stored in the circular buffer.
void	set_size (int n, bool copy=false)
	Resizing a Circular_Buffer<T>.

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Detailed Description

template<class T>
class itpp::Circular_Buffer< T >

General circular buffer class.

This class is a general circular buffer class for arbitrary types.

For rarely used types you will need to instantiate the class by

  template class Circular_Buffer<type>;

The following example shows how to define a Circular_Buffer of doubles:

  vec a = randn(3);
  vec b = randn(8);
  vec out_vec;
  Array <double> out_array;

  Circular_Buffer<double> cb1(10);

  //Put the elements of a to the buffer
  cb1.put(a);

  //Vector output: Peek at the two oldest elements of the buffer (the two first extracted)
  cb1.peek(out_vec,2);
  cout << "peek(out_vec,2) = " << out_vec << ": display 2 first elements of the buffer, without affecting the content"  << endl;

  //Vector output: Peek at all elements of the buffer in reverse order
  cb1.peek_reverse(out_vec);
  cout << "peek_reverse(out_vec,-1) = " << out_vec << ": display buffer, without affecting the content"  << endl;

  //Array output: Peek at all elements of the buffer in reverse order
  cb1.peek_reverse(out_array);
  cout << "peek_reverse(out_array,-1) = " << out_array << ": display buffer, without affecting the content"  << endl;

  //Put the elements of \c b to the buffer
  cb1.put(b);

  //Extract the oldest element of the buffer
  cb1.get(out_vec,1);
  cout << "get(out_vec,1) = " << out_vec << endl ;

  //Extract all element of the buffer
  cb1.get(out_vec);
  cout << "get(out_vec) = " << out_vec << endl ;

Definition at line 92 of file circular_buffer.h.

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The documentation for this class was generated from the following file:

• itpp/base/circular_buffer.h