1 /*---------------------------------------------------------------------------*\
3 \\ / F ield | foam-extend: Open Source CFD
4 \\ / O peration | Version: 3.2
5 \\ / A nd | Web: http://www.foam-extend.org
6 \\/ M anipulation | For copyright notice see file Copyright
7 -------------------------------------------------------------------------------
9 This file is part of foam-extend.
11 foam-extend is free software: you can redistribute it and/or modify it
12 under the terms of the GNU General Public License as published by the
13 Free Software Foundation, either version 3 of the License, or (at your
14 option) any later version.
16 foam-extend is distributed in the hope that it will be useful, but
17 WITHOUT ANY WARRANTY; without even the implied warranty of
18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19 General Public License for more details.
21 You should have received a copy of the GNU General Public License
22 along with foam-extend. If not, see <http://www.gnu.org/licenses/>.
24 \*---------------------------------------------------------------------------*/
28 // * * * * * * * * * * * * * * * Global Functions * * * * * * * * * * * * * //
30 Foam::labelList Foam::invert
33 const UList<label>& map
36 labelList inverse(len, -1);
40 label newPos = map[i];
44 if (inverse[newPos] >= 0)
46 FatalErrorIn("invert(const label, const UList<label>&)")
47 << "Map is not one-to-one. At index " << i
48 << " element " << newPos << " has already occurred before"
49 << nl << "Please use invertOneToMany instead"
60 Foam::labelListList Foam::invertOneToMany
63 const UList<label>& map
66 labelList nElems(len, 0);
76 labelListList inverse(len);
80 inverse[i].setSize(nElems[i]);
90 inverse[newI][nElems[newI]++] = i;
98 Foam::labelList Foam::identity(const label len)
110 // ************************************************************************* //