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OpenFOAM-dev / data /src /OpenFOAM /primitives /ranges /labelRange /labelRange.C

introvoyz042

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/*---------------------------------------------------------------------------*\
  =========                 |
  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
   \\    /   O peration     | Website:  https://openfoam.org
    \\  /    A nd           | Copyright (C) 2011-2018 OpenFOAM Foundation
     \\/     M anipulation  |
-------------------------------------------------------------------------------
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/>.
\*---------------------------------------------------------------------------*/

#include "labelRange.H"
#include "token.H"


// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //

const Foam::labelRange Foam::labelRange::endLabelRange_;
const Foam::labelRange::const_iterator Foam::labelRange::endIter_;
int Foam::labelRange::debug(::Foam::debug::debugSwitch("labelRange", 0));


// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //

Foam::labelRange::labelRange(Istream& is)
:
    start_(0),
    size_(0)
{
    is  >> *this;
}


// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //

bool Foam::labelRange::intersects
(
    const labelRange& range,
    const bool touches
) const
{
    label final = touches ? 1 : 0;

    return
    (
        this->size()
     && range.size()
     &&
        (
            (
                range.first() >= this->first()
             && range.first() <= this->last() + final
            )
         ||
            (
                this->first() >= range.first()
             && this->first() <= range.last() + final
            )
        )
    );
}


Foam::labelRange Foam::labelRange::join(const labelRange& range) const
{
    // trivial cases first
    if (!size_)
    {
        return *this;
    }
    else if (!range.size_)
    {
        return range;
    }

    const label lower = Foam::min(this->first(), range.first());
    const label upper = Foam::max(this->last(),  range.last());
    const label sz = upper - lower + 1;

    return labelRange(lower, sz);
}


// * * * * * * * * * * * * * * * Member Operators  * * * * * * * * * * * * * //

Foam::labelRange& Foam::labelRange::operator+=(const labelRange& rhs)
{
    if (!size_)
    {
        // trivial case
        operator=(rhs);
    }
    else if (rhs.size_)
    {
        const label lower = Foam::min(this->first(), rhs.first());
        const label upper = Foam::max(this->last(),  rhs.last());

        start_ = lower;
        size_  = upper - lower + 1;
    }

    return *this;
}


// * * * * * * * * * * * * * * * Friend Operators  * * * * * * * * * * * * * //

Foam::Istream& Foam::operator>>(Istream& is, labelRange& range)
{
    is.readBegin("labelRange");
    is  >> range.start_ >> range.size_;
    is.readEnd("labelRange");

    is.check("operator>>(Istream&, labelRange&)");

    // disallow invalid sizes
    if (range.size_ <= 0)
    {
        range.clear();
    }

    return is;
}


Foam::Ostream& Foam::operator<<(Ostream& os, const labelRange& range)
{
    // write ASCII only for now
    os  << token::BEGIN_LIST
        << range.start_ << token::SPACE << range.size_
        << token::END_LIST;

//    os  << token::BEGIN_BLOCK
//        << range.start_ << "-" << range.last()
//        << token::END_BLOCK;

    os.check("operator<<(Ostream&, const labelRange&)");
    return os;
}


// ************************************************************************* //

	/---------------------------------------------------------------------------\
	========= \|
	\\ / F ield \| OpenFOAM: The Open Source CFD Toolbox
	\\ / O peration \| Website: https://openfoam.org
	\\ / A nd \| Copyright (C) 2011-2018 OpenFOAM Foundation
	\\/ M anipulation \|
	-------------------------------------------------------------------------------
	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/>.

	\---------------------------------------------------------------------------/

	#include "labelRange.H"
	#include "token.H"


	// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //

	const Foam::labelRange Foam::labelRange::endLabelRange_;
	const Foam::labelRange::const_iterator Foam::labelRange::endIter_;
	int Foam::labelRange::debug(::Foam::debug::debugSwitch("labelRange", 0));


	// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //

	Foam::labelRange::labelRange(Istream& is)
	:
	start_(0),
	size_(0)
	{
	is >> *this;
	}


	// * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //

	bool Foam::labelRange::intersects
	(
	const labelRange& range,
	const bool touches
	) const
	{
	label final = touches ? 1 : 0;

	return
	(
	this->size()
	&& range.size()
	&&
	(
	(
	range.first() >= this->first()
	&& range.first() <= this->last() + final
	)
	\|\|
	(
	this->first() >= range.first()
	&& this->first() <= range.last() + final
	)
	)
	);
	}


	Foam::labelRange Foam::labelRange::join(const labelRange& range) const
	{
	// trivial cases first
	if (!size_)
	{
	return *this;
	}
	else if (!range.size_)
	{
	return range;
	}

	const label lower = Foam::min(this->first(), range.first());
	const label upper = Foam::max(this->last(), range.last());
	const label sz = upper - lower + 1;

	return labelRange(lower, sz);
	}


	// * * * * * * * * * * * * * * * Member Operators * * * * * * * * * * * * * //

	Foam::labelRange& Foam::labelRange::operator+=(const labelRange& rhs)
	{
	if (!size_)
	{
	// trivial case
	operator=(rhs);
	}
	else if (rhs.size_)
	{
	const label lower = Foam::min(this->first(), rhs.first());
	const label upper = Foam::max(this->last(), rhs.last());

	start_ = lower;
	size_ = upper - lower + 1;
	}

	return *this;
	}


	// * * * * * * * * * * * * * * * Friend Operators * * * * * * * * * * * * * //

	Foam::Istream& Foam::operator>>(Istream& is, labelRange& range)
	{
	is.readBegin("labelRange");
	is >> range.start_ >> range.size_;
	is.readEnd("labelRange");

	is.check("operator>>(Istream&, labelRange&)");

	// disallow invalid sizes
	if (range.size_ <= 0)
	{
	range.clear();
	}

	return is;
	}


	Foam::Ostream& Foam::operator<<(Ostream& os, const labelRange& range)
	{
	// write ASCII only for now
	os << token::BEGIN_LIST
	<< range.start_ << token::SPACE << range.size_
	<< token::END_LIST;

	// os << token::BEGIN_BLOCK
	// << range.start_ << "-" << range.last()
	// << token::END_BLOCK;

	os.check("operator<<(Ostream&, const labelRange&)");
	return os;
	}


	// ************************************************************************* //