File size: 2,271 Bytes
5a600cf | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 | /*---------------------------------------------------------------------------*\
========= |
\\ / 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
\*---------------------------------------------------------------------------*/
#include "ReadHex.H"
#include <cctype>
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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;
}
// ************************************************************************* //
|