labelRanges.H

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/*---------------------------------------------------------------------------*\
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  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
   \\    /   O peration     | Website:  https://openfoam.org
    \\  /    A nd           | Copyright (C) 2011-2019 OpenFOAM Foundation
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-------------------------------------------------------------------------------
License
    This file is part of OpenFOAM.
 
    OpenFOAM is free software: you can redistribute it and/or modify it
    under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.
 
    OpenFOAM 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 General Public License
    for more details.
 
    You should have received a copy of the GNU General Public License
    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
 
Class
    Foam::labelRanges
 
Description
    A list of labelRange.
 
SourceFiles
    labelRanges.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef labelRanges_H
#define labelRanges_H
 
#include "labelRange.H"
#include "DynamicList.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
// Forward declaration of classes
class Istream;
class Ostream;
 
// Forward declaration of friend functions and operators
class labelRanges;
Istream& operator>>(Istream&, labelRanges&);
Ostream& operator<<(Ostream&, const labelRanges&);
 
/*---------------------------------------------------------------------------*\
                         Class labelRanges Declaration
\*---------------------------------------------------------------------------*/
 
class labelRanges
:
    private DynamicList<labelRange>
{
    // Private Typedefs for convenience
 
        typedef DynamicList<labelRange> ParentType;
 
 
    // Private Member Functions
 
        //- Insert range before specified insertion index, by copying up
        void insertBefore(const label, const labelRange&);
 
        //- Purge empty ranges, by copying down
        void purgeEmpty();
 
        //- Print the range for debugging purposes
        Ostream& printRange(Ostream&, const labelRange&) const;
 
 
public:
 
    // Constructors
 
        //- Construct null
        inline labelRanges();
 
        //- Construct given size
        inline explicit labelRanges(const label);
 
        //- Construct from Istream.
        labelRanges(Istream&);
 
 
    // Member Functions
 
        //- Clear the addressed list
        using DynamicList<labelRange>::clear;
 
        //- Return true if the list is empty
        using DynamicList<labelRange>::empty;
 
        //- Return true if the value is within any of the ranges
        inline bool contains(const label) const;
 
        //- Add the range to the list
        bool add(const labelRange&);
 
        //- Remove the range from the list
        bool remove(const labelRange&);
 
    // STL iterator
 
        //- An STL const_iterator
        class const_iterator
        {
            // Private Data
 
                //- Reference to the list for which this is an iterator
                const labelRanges& list_;
 
                //- Current list index
                label index_;
 
                //- Index of current element at listIndex
                label subIndex_;
 
        public:
 
            // Constructors
 
                //- Construct null - equivalent to an 'end' position
                inline const_iterator();
 
                //- Construct from list, moving to its 'begin' position
                inline explicit const_iterator(const labelRanges&);
 
 
            // Member Operators
 
                inline bool operator==(const const_iterator&) const;
 
                inline bool operator!=(const const_iterator&) const;
 
                inline label operator*();
                inline label operator()();
 
                inline const_iterator& operator++();
                inline const_iterator operator++(int);
        };
 
 
        //- const_iterator set to the beginning of the list
        inline const_iterator cbegin() const;
 
        //- const_iterator set to beyond the end of the list
        inline const const_iterator& cend() const;
 
        //- const_iterator set to the beginning of the list
        inline const_iterator begin() const;
 
        //- const_iterator set to beyond the end of the list
        inline const const_iterator& end() const;
 
 
    // IOstream Operators
 
        friend Istream& operator>>(Istream&, labelRanges&);
        friend Ostream& operator<<(Ostream&, const labelRanges&);
 
 
private:
 
        //- const labelRanges held by endIter_
        static const labelRanges endLabelRanges_;
 
        //- const_iterator returned by end(), cend()
        static const const_iterator endIter_;
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#include "labelRangesI.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //