| /*---------------------------------------------------------------------------*\ | |
| ========= | | |
| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox | |
| \\ / O peration | Website: https://openfoam.org | |
| \\ / A nd | Copyright (C) 2013-2018 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/>. | |
| Description | |
| Read a non-delimited hex label | |
| \*---------------------------------------------------------------------------*/ | |
| // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // | |
| template<class T> | |
| T Foam::ReadHex(ISstream& is) | |
| { | |
| // Takes into account that 'a' (or 'A') is 10 | |
| static const int alphaOffset = toupper('A') - 10; | |
| // Takes into account that '0' is 0 | |
| static const int zeroOffset = int('0'); | |
| char c = 0; | |
| // Get next non-whitespace character | |
| while (is.get(c) && isspace(c)) | |
| {} | |
| T result = 0; | |
| do | |
| { | |
| if (isspace(c) || c == 0) break; | |
| if (!isxdigit(c)) | |
| { | |
| FatalIOErrorInFunction(is) | |
| << "Illegal hex digit: '" << c << "'" | |
| << exit(FatalIOError); | |
| } | |
| result <<= 4; | |
| if (isdigit(c)) | |
| { | |
| result += int(c) - zeroOffset; | |
| } | |
| else | |
| { | |
| result += toupper(c) - alphaOffset; | |
| } | |
| } while (is.get(c)); | |
| return result; | |
| } | |
| // ************************************************************************* // | |