Add iterator, wrapper over SMDS_Iterator, adding std-like operators *, ++ etc

+	SMDS_StdIterator.hxx
This commit is contained in:
eap 2010-02-09 11:02:53 +00:00
parent 1fd762e26c
commit 48378761b2
2 changed files with 76 additions and 1 deletions

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@ -62,7 +62,8 @@ salomeinclude_HEADERS = \
SMDS_QuadraticVolumeOfNodes.hxx \
SMDS_SetIterator.hxx \
SMESH_SMDS.hxx \
SMDS_MeshInfo.hxx
SMDS_MeshInfo.hxx \
SMDS_StdIterator.hxx
# Libraries targets

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@ -0,0 +1,74 @@
// Copyright (C) 2007-2008 CEA/DEN, EDF R&D, OPEN CASCADE
//
// Copyright (C) 2003-2007 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
// CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
//
// See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
//
// SMESH SMDS : implementaion of Salome mesh data structure
//
// File : SMDS_StdIterator.hxx
// Created : Fri Feb 5 11:03:46 2010
// Author : Edward AGAPOV (eap)
#ifndef __SMDS_StdIterator_HXX__
#define __SMDS_StdIterator_HXX__
///////////////////////////////////////////////////////////////////////////////
/*!
* \brief Wrapper over pointer to SMDS_Iterator, like SMDS_ElemIteratorPtr, enabling
* its usage in std-like way: provide operators ++, *, etc.
*/
///////////////////////////////////////////////////////////////////////////////
template<typename VALUE, class PtrSMDSIterator, class EqualVALUE = std::equal_to<VALUE> >
class SMDS_StdIterator : public std::iterator< std::input_iterator_tag, VALUE >
{
VALUE _value;
PtrSMDSIterator _piterator;
EqualVALUE _EqualVALUE;
public:
typedef SMDS_StdIterator<VALUE, PtrSMDSIterator> _Self;
// constructor to use as return from begin()
SMDS_StdIterator( PtrSMDSIterator pItr )
: _value( pItr->more() ? (VALUE)(pItr->next()) : 0 ), _piterator(pItr)
{}
// constructor to use as return from end()
SMDS_StdIterator(): _value( 0 )
{}
/// Return the current object
VALUE operator*() const
{ return _value; }
// Step to the next one
_Self&
operator++()
{ _value = _piterator->more() ? VALUE( _piterator->next()) : 0; return *this; }
// Test of end
bool
operator!=(const _Self& __x) const
{ return !_EqualVALUE( _value, __x._value); }
};
#endif