Ichthyostega
9c21164ae6
This changeset fixes a huge pile of problems, as indicated in the error log of the Doxygen run after merging all the recent Doxygen improvements unfortunately, auto-linking does still not work at various places. There is no clear indication what might be the problem. Possibly the rather unstable Sqlite support in this Doxygen version is the cause. Anyway, needs to be investigated further.
105 lines
3.2 KiB
C++
105 lines
3.2 KiB
C++
/*
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UtilFloorwrap(Test) - verify integer scale remainder wrapping
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Copyright (C) Lumiera.org
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2011, Hermann Vosseler <Ichthyostega@web.de>
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of
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the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License 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 this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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* *****************************************************/
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/** @file util-floorwrap-test.cpp
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** unit test \ref UtilFloorwrap_test
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*/
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#include "lib/test/run.hpp"
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#include "lib/test/test-helper.hpp"
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#include "lib/format-string.hpp"
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#include "lib/format-cout.hpp"
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#include "lib/util-quant.hpp"
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#include <cmath>
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#include <boost/lexical_cast.hpp>
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using ::Test;
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using boost::lexical_cast;
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using util::typeStr;
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using util::floorwrap;
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namespace util {
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namespace test {
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/***********************************************************************//**
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* @test Verify a custom built integer scale division and wrapping function.
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* This function is relevant for decimating values into a given scale,
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* like splitting time measurements in hours, minutes, seconds etc.
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* Basically, in Lumiera the quantisation into a scale is always
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* done with the same orientation, irrespective of the zero point
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* on the given scale. Contrast this to the built-in integer
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* division and modulo operators working symmetrical to zero.
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* @see lib/util.hpp
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* @see TimeFormats_test
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*/
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class UtilFloorwrap_test : public Test
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{
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virtual void
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run (Arg arg)
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{
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int range = 0 < arg.size()? lexical_cast<int> (arg[0]) : 12;
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int scale = 1 < arg.size()? lexical_cast<int> (arg[1]) : 4;
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checkWrap (range, scale);
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checkWrap (range, -scale);
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checkWrap<long> (range, scale);
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checkWrap<long> (range, -scale);
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}
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template<typename I>
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void
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checkWrap (I range, I scale)
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{
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cout << "--------"<< typeStr<I>()
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<< "--------"<< range<<"/"<<scale<<endl;
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for (I i=range; i >=-range; --i)
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showWrap (i, scale);
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}
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template<typename I>
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void
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showWrap (I val, I scale)
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{
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IDiv<I> wrap = floorwrap(val,scale);
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cout << _Fmt ("% 3d /% 1d =% 1d %% =% d floor=% 4.1f wrap = (%2d,%2d)\n")
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% val % scale % (val/scale)
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% (val%scale) % floor(double(val)/scale)
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% wrap.quot % wrap.rem;
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}
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};
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LAUNCHER (UtilFloorwrap_test, "unit common");
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}} // namespace util::test
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