171 lines
3.9 KiB
C
171 lines
3.9 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 | www.openfoam.com
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\\/ M anipulation |
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-------------------------------------------------------------------------------
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Copyright (C) 2017-2018 OpenCFD Ltd.
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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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Description
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\*---------------------------------------------------------------------------*/
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#include "ListStream.H"
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#include "UListStream.H"
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#include "wordList.H"
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#include "IOstreams.H"
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#include "argList.H"
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using namespace Foam;
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Ostream& toString(Ostream& os, const UList<char>& list)
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{
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os << '"';
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for (const char c : list)
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{
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os << c;
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}
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os << '"';
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return os;
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}
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template<class BufType>
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void printInfo(const BufType& buf)
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{
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Info<< nl << "=========================" << endl;
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buf.print(Info);
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toString(Info, buf.list());
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Info<< nl << "=========================" << endl;
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}
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template<>
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void printInfo(const List<char>& buf)
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{
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Info<< nl << "=========================" << endl;
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toString(Info, buf);
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Info<< nl << "=========================" << endl;
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}
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void printTokens(Istream& is)
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{
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label count = 0;
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token t;
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while (is.good())
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{
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is >> t;
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if (t.good())
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{
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++count;
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Info<<"token: " << t << endl;
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}
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}
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Info<< count << " tokens" << endl;
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}
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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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// Buffer storage
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DynamicList<char> storage(16);
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OListStream obuf(std::move(storage));
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obuf << 1002 << " " << "abcd" << " " << "def" << " " << 3.14159 << ";\n";
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// Move contents to output buffer
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printInfo(obuf);
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Info<<nl << "as string: ";
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toString(Info, obuf.list()) << endl;
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Info<< "transfer contents to a List" << endl;
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IListStream ibuf;
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// Reclaim data storage from OListStream -> IListStream
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{
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List<char> data;
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obuf.swap(data);
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ibuf.swap(data);
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}
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Info<< nl;
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Info<< nl << "input string:";
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printInfo(ibuf);
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Info<< nl << "orig output:";
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printInfo(obuf);
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printTokens(ibuf);
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Info<<nl << "after:";
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printInfo(ibuf);
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// This should also work
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ibuf.list() = 'X';
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Info<<nl << "overwritten with const value:";
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printInfo(ibuf);
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// Can also change content like this:
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{
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const int n = min(26, ibuf.size());
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for (int i=0; i<n; ++i)
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{
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ibuf.list()[i] = 'A' + i;
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}
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}
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Info<<nl << "directly written:";
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printInfo(ibuf);
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// Swap in/out an entirely new list storage:
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List<char> newvalues(52);
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{
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for (int i=0; i<26; ++i)
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{
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newvalues[2*i+0] = char('a' + i);
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newvalues[2*i+1] = char('A' + i);
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}
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}
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ibuf.swap(newvalues);
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Info<<nl << "after swap:";
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printInfo(ibuf);
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Info<<nl << "swapped out:";
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printInfo(newvalues);
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Info<< "\nEnd\n" << endl;
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return 0;
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}
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// ************************************************************************* //
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