d01eb45cfc
Until C++ supports 'concepts' the only way to support construction from
two iterators is to provide a constructor of the form:
template<class InputIterator>
List(InputIterator first, InputIterator last);
which for some types conflicts with
//- Construct with given size and value for all elements
List(const label, const T&);
e.g. to construct a list of 5 scalars initialized to 0:
List<scalar> sl(5, 0);
causes a conflict because the initialization type is 'int' rather than
'scalar'. This conflict may be resolved by specifying the type of the
initialization value:
List<scalar> sl(5, scalar(0));
The new initializer list contructor provides a convenient and efficient alternative
to using 'IStringStream' to provide an initial list of values:
List<vector> list4(IStringStream("((0 1 2) (3 4 5) (6 7 8))")());
or
List<vector> list4
{
vector(0, 1, 2),
vector(3, 4, 5),
vector(6, 7, 8)
};
159 lines
4.0 KiB
C
159 lines
4.0 KiB
C
/*---------------------------------------------------------------------------*\
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========= |
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\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
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\\ / O peration |
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\\ / A nd | Copyright (C) 2011-2016 OpenFOAM Foundation
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\\/ M anipulation |
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-------------------------------------------------------------------------------
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License
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This file is part of OpenFOAM.
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OpenFOAM is free software: you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
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Application
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Test-List
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Description
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Simple tests and examples of use of List
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See also
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Foam::List
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\*---------------------------------------------------------------------------*/
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#include "OSspecific.H"
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#include "argList.H"
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#include "wordReList.H"
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#include "IOstreams.H"
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#include "IStringStream.H"
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#include "scalar.H"
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#include "vector.H"
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#include "ListOps.H"
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#include<list>
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using namespace Foam;
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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// Main program:
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int main(int argc, char *argv[])
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{
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argList::noParallel();
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argList::addOption("reList", "reList");
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argList::addOption("wordList", "wordList");
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argList::addOption("stringList", "stringList");
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argList::addOption("float", "xx");
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argList::addBoolOption("flag");
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#include "setRootCase.H"
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List<vector> list1(IStringStream("1 ((0 1 2))")());
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Info<< "list1: " << list1 << endl;
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List<vector> list2
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{
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vector(0, 1, 2),
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vector(3, 4, 5),
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vector(6, 7, 8)
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};
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Info<< "list2: " << list2 << endl;
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list1.append(list2);
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Info<< "list1.append(list2): " << list1 << endl;
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Info<< findIndex(list2, vector(3, 4, 5)) << endl;
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list2.setSize(10, vector(1, 2, 3));
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Info<< "list2: " << list2 << endl;
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List<vector> list3(list2.xfer());
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Info<< "Transferred via the xfer() method" << endl;
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Info<< "list2: " << list2 << nl
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<< "list3: " << list3 << endl;
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List<vector> list4
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{
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vector(0, 1, 2),
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vector(3, 4, 5),
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vector(6, 7, 8)
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};
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Info<< "list4: " << list4 << endl;
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List<vector> list5
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{
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vector(5, 3, 1),
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vector(10, 2, 2),
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vector(8, 1, 0)
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};
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Info<< "list5: " << list5 << endl;
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list4.swap(list5);
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Info<< "Swapped via the swap() method" << endl;
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Info<< "list4: " << list4 << nl
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<< "list5: " << list5 << endl;
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List<vector> list6(list4.begin(), list4.end());
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Info<< "list6: " << list6 << endl;
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// Subset
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const labelList map{0, 2};
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List<vector> subList3(list3, map);
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Info<< "Elements " << map << " out of " << list3
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<< " => " << subList3 << endl;
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wordReList reLst;
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wordList wLst;
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stringList sLst;
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scalar xxx(-1);
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if (args.optionFound("flag"))
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{
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Info<<"-flag:" << args["flag"] << endl;
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}
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if (args.optionReadIfPresent<scalar>("float", xxx))
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{
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Info<<"read float " << xxx << endl;
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}
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if (args.optionFound("reList"))
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{
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reLst = args.optionReadList<wordRe>("reList");
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}
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if (args.optionFound("wordList"))
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{
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wLst = args.optionReadList<word>("wordList");
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}
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if (args.optionFound("stringList"))
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{
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sLst = args.optionReadList<string>("stringList");
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}
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Info<< nl
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<< "-reList: " << reLst << nl
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<< "-wordList: " << wLst << nl
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<< "-stringList: " << sLst << endl;
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return 0;
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}
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// ************************************************************************* //
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