The name of the namespace stands for VectorFromMatrixSliceIterator. More...

Classes
struct	Left
	Indicates composition from left. More...

struct	LeftRight
	Metafunction returning the appropriate set of retained index positions. More...

struct	Right
	Indicates composition from right. More...

Typedefs
template<int RANK, typename S , bool IS_CONST>
using	Iterator = basi::Iterator< RANK, LeftRight< RANK/2, S >, IS_CONST >
	Template alias. More...

Detailed Description

The name of the namespace stands for VectorFromMatrixSliceIterator.

It comprises tools for adapting basi::Iterators to iteration over rows or columns of (multi)matrices

Semantics: Consider the following piece of code:
// Copyright András Vukics 2006–2014. Distributed under the Boost Software License, Version 1.0. (See accompanying file LICENSE.txt)

#include "VectorFromMatrixSliceIterator.h"

#include <boost/range/algorithm/for_each.hpp>

using boost::for_each; using tmptools::Vector;

template <int RANK> using StateVector =CArray< RANK>;

template <int RANK> using DensityOperator=CArray<2*RANK>;

void actWithA(StateVector<5>&);

Assume that actWithA is defined in such a way that if psi is of type StateVector<5>, then actWithA(psi) results in $A\ket\Psi$ .
void composeWithA(DensityOperator<5>& rho)

{

using namespace blitzplusplus::vfmsi;

for_each(fullRange<Left>(rho),actWithA);

}

Then, if rho is of type DensityOperator<5>, then composeWithA(rho) results in $A\rho$ .

Typedef Documentation

template<int RANK, typename S , bool IS_CONST>

Template alias.

Template Parameters

RANK	the arity of the multivectors resulting from the slicing (the rows/colunms of the multimatrix of total arity `2*RANK`)
S	should be either Left or Right
IS_CONST	governs constness