mirror of https://github.com/CGAL/cgal
101 lines
2.9 KiB
C++
101 lines
2.9 KiB
C++
// ============================================================================
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//
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// Copyright (c) 1998 The CGAL Consortium
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//
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// This software and related documentation is part of an INTERNAL release
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// of the Computational Geometry Algorithms Library (CGAL). It is not
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// intended for general use.
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//
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// ----------------------------------------------------------------------------
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//
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// release : $CGAL_Revision $
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// release_date : $CGAL_Date $
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//
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// file : Transform_iterator.h
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// chapter : $CGAL_Chapter: Geometric Optimisation $
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// package : $CGAL_Package: Matrix_search $
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// source : mon_search.aw
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// revision : $Revision$
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// revision_date : $Date$
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// author(s) : Michael Hoffmann <hoffmann@inf.ethz.ch>
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//
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// coordinator : ETH Zurich (Bernd Gaertner <gaertner@inf.ethz.ch>)
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//
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// An OutputIterator Adaptor applying an unary function
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// ============================================================================
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#if ! (CGAL_TRANSFORM_ITERATOR_H)
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#define CGAL_TRANSFORM_ITERATOR_H 1
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#ifndef CGAL_OPTIMISATION_ASSERTIONS_H
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#include <CGAL/optimisation_assertions.h>
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#endif // CGAL_OPTIMISATION_ASSERTIONS_H
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#ifndef CGAL_CIRCULATOR_BASES_H
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#include <CGAL/circulator_bases.h>
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#endif // CGAL_CIRCULATOR_BASES_H
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#ifndef CGAL_PROTECT_ITERATOR_H
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#include <iterator.h>
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#define CGAL_PROTECT_ITERATOR_H
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#endif // CGAL_PROTECT_ITERATOR_H
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template < class OutputIterator, class Operation >
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class CGAL_Transform_iterator : public output_iterator {
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public:
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typedef CGAL_Transform_iterator< OutputIterator, Operation >
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self;
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typedef typename Operation::argument_type
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argument_type;
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CGAL_Transform_iterator( const OutputIterator& o,
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const Operation& op)
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: _o( o), _op( op)
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{}
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operator OutputIterator()
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{ return _o; }
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self& operator*()
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{ return *this; }
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self& operator++()
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{ return *this; }
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self& operator++( int)
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{ return *this; }
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self& operator=( const argument_type& a)
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{
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*(_o++) = _op( a);
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return *this;
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}
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private:
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OutputIterator _o;
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Operation _op;
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};
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template < class OutputIterator, class Operation > inline
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CGAL_Transform_iterator< OutputIterator, Operation >
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CGAL_transform_iterator( const OutputIterator& o,
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const Operation& op)
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{ return CGAL_Transform_iterator< OutputIterator, Operation >( o, op); }
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template < class OutputIterator, class Operation > inline
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output_iterator_tag
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iterator_category(
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const CGAL_Transform_iterator< OutputIterator, Operation >&)
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{ return output_iterator_tag(); }
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template < class OutputIterator, class Operation > inline
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CGAL_Iterator_tag
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CGAL_query_circulator_or_iterator(
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const CGAL_Transform_iterator< OutputIterator, Operation >&)
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{ return CGAL_Iterator_tag(); }
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#endif // ! (CGAL_TRANSFORM_ITERATOR_H)
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// ----------------------------------------------------------------------------
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// ** EOF
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// ----------------------------------------------------------------------------
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