funchistory< X > Class Template Reference

History of function states. More...

#include <funcstate.h>

Collaboration diagram for funchistory< X >:

List of all members.

Public Member Functions
	funchistory (funcstate< X > &fs_)
	Initialize reference.
	~funchistory ()
	Free memory if allocated.
X *	operator[] (uintc i)
	Access position states.
void	push ()
	Save current position.
void	pop ()
	Read then delete front of xik stack into the current position.
void	restore ()
	Copy the front of xik stack to the current position.
void	del_back ()
	Removes the last position stack element.
Public Attributes
deque< X * >	xik
	Previous positions with function value as the last element.
funcstate< X > &	fs
	The function.

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Detailed Description

template<typename X>
class funchistory< X >

History of function states.

Definition at line 61 of file funcstate.h.

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Constructor & Destructor Documentation

template<typename X>

funchistory< X >::funchistory

(

funcstate< X > &

fs_

)

[inline]

Initialize reference.

Definition at line 72 of file funcstate.h.

    : fs(fs_) {}

template<typename X >

funchistory< X >::~funchistory

(

)

[inline]

Free memory if allocated.

Definition at line 181 of file funcstate.h.

References funchistory< X >::xik.

{
  for (uint i=0; i<xik.size(); ++i)
    delete[] xik[i];
  xik.clear();
}

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Member Function Documentation

template<typename X >

void funchistory< X >::del_back

(

)

[inline]

Removes the last position stack element.

Definition at line 170 of file funcstate.h.

References funchistory< X >::xik.

{
  if (xik.empty())
    return;

  X * z = xik.back();
  xik.pop_back();
  delete[] z; 
}

template<typename X>

X* funchistory< X >::operator[]

(

uintc

i

)

[inline]

Access position states.

Definition at line 78 of file funcstate.h.

References funchistory< X >::xik.

    { assert(i<xik.size()); return xik[i]; }

template<typename X >

void funchistory< X >::pop

(

)

[inline]

Read then delete front of xik stack into the current position.

Definition at line 146 of file funcstate.h.

References funchistory< X >::fs, and funchistory< X >::xik.

Referenced by functest::test08().

{
  assert( xik.empty()==false);
  if (xik.empty())
    return;

  X * z = xik[0];
  fs.set_positionvalue( z );
  delete[] z;
  xik.pop_front();
}

template<typename X >

void funchistory< X >::push

(

)

[inline]

Save current position.

Definition at line 136 of file funcstate.h.

References funchistory< X >::fs, and funchistory< X >::xik.

Referenced by functest::test08().

{
  X* x= new X[fs.dim+1];
  for (uint i=0; i<=fs.dim; ++i)
    x[i] = fs.xi[i];

  xik.push_front(x);
}

template<typename X >

void funchistory< X >::restore

(

)

[inline]

Copy the front of xik stack to the current position.

Definition at line 159 of file funcstate.h.

References funchistory< X >::fs, and funchistory< X >::xik.

{
  assert( xik.empty()==false);
  if (xik.empty())
    return;

  X * z = xik[0];
  fs.set_positionvalue( z );
}

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Member Data Documentation

template<typename X>

funcstate<X>& funchistory< X >::fs

The function.

Definition at line 69 of file funcstate.h.

Referenced by funchistory< X >::pop(), funchistory< X >::push(), and funchistory< X >::restore().

template<typename X>

deque< X* > funchistory< X >::xik

Previous positions with function value as the last element.

Definition at line 66 of file funcstate.h.

Referenced by funchistory< X >::del_back(), funchistory< X >::operator[](), funchistory< X >::pop(), funchistory< X >::push(), funchistory< X >::restore(), and funchistory< X >::~funchistory().

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

• mathlib/funcstate.h