src/tools/values/veComparison.cpp

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/*

*************************************************************************

ArmageTron -- Just another Tron Lightcycle Game in 3D.
Copyright (C) 2000  Manuel Moos (manuel@moosnet.de)

**************************************************************************

This program 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 2
of the License, or (at your option) any later version.

This program 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 this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

***************************************************************************

*/

#include "vCore.h"
#include "veComparison.h"

namespace vValue {
namespace Expr {
namespace Comparison {

#define CodeStdBinOp(classname, op)       \
Variant                                   \
classname::GetValue(void) const {         \
    return (int)(*m_lvalue op *m_rvalue); \
}                                         \
Base *classname::copy(void) const {       \
    return new classname(*this);          \
}                                         \

CodeStdBinOp(GreaterThan    , >  )
CodeStdBinOp(GreaterOrEquals, >= )
CodeStdBinOp(         Equals, == )
CodeStdBinOp(   LessOrEquals, <= )
CodeStdBinOp(   LessThan    , <  )

Variant
Compare::GetValue(void) const {
    // This could probably be optimized
    if (*m_lvalue == *m_rvalue)
        return 0;
    else
        if (*m_lvalue < *m_rvalue)
            return -1;
        else
            if (*m_lvalue > *m_rvalue)
                return 1;
    // cast required for windows
    return (REAL)NAN;
}

Base *Compare::copy(void) const {
    return new Compare(*this);
}

}
}
}

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