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SHA1Digest.C

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00001 /*---------------------------------------------------------------------------*\
00002   =========                 |
00003   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
00004    \\    /   O peration     |
00005     \\  /    A nd           | Copyright (C) 1991-2010 OpenCFD Ltd.
00006      \\/     M anipulation  |
00007 -------------------------------------------------------------------------------
00008 License
00009     This file is part of OpenFOAM.
00010 
00011     OpenFOAM is free software: you can redistribute it and/or modify it
00012     under the terms of the GNU General Public License as published by
00013     the Free Software Foundation, either version 3 of the License, or
00014     (at your option) any later version.
00015 
00016     OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
00017     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
00018     FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
00019     for more details.
00020 
00021     You should have received a copy of the GNU General Public License
00022     along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
00023 
00024 \*---------------------------------------------------------------------------*/
00025 
00026 #include "SHA1Digest.H"
00027 #include <OpenFOAM/IOstreams.H>
00028 
00029 #include <cstring>
00030 
00031 // * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
00032 
00034 const char hexChars[] = "0123456789abcdef";
00036 
00037 
00038 // * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
00039 
00040 Foam::SHA1Digest::SHA1Digest()
00041 {
00042     clear();
00043 }
00044 
00045 
00046 // * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * * //
00047 
00048 void Foam::SHA1Digest::clear()
00049 {
00050     memset(v_, 0, length);
00051 }
00052 
00053 
00054 // * * * * * * * * * * * * * * Member Operators  * * * * * * * * * * * * * * //
00055 
00056 bool Foam::SHA1Digest::operator==(const SHA1Digest& rhs) const
00057 {
00058     for (unsigned i = 0; i < length; ++i)
00059     {
00060         if (v_[i] != rhs.v_[i])
00061         {
00062             return false;
00063         }
00064     }
00065 
00066     return true;
00067 }
00068 
00069 
00070 bool Foam::SHA1Digest::operator!=(const SHA1Digest& rhs) const
00071 {
00072     return !operator==(rhs);
00073 }
00074 
00075 
00076 // * * * * * * * * * * * * * * Friend Operators * * * * * * * * * * * * * * //
00077 
00078 Foam::Ostream& Foam::operator<<(Ostream& os, const SHA1Digest& dig)
00079 {
00080     const unsigned char *v = dig.v_;
00081 
00082     for (unsigned i = 0; i < dig.length; ++i)
00083     {
00084         os.write(hexChars[((v[i] >> 4) & 0xF)]);
00085         os.write(hexChars[(v[i] & 0xF)]);
00086     }
00087 
00088     os.check("Ostream& operator<<(Ostream&, const SHA1Digest&)");
00089     return os;
00090 }
00091 
00092 
00093 // ************************ vim: set sw=4 sts=4 et: ************************ //
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