vctStoreBackUnaryOperations.h

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-    */
/* ex: set filetype=cpp softtabstop=4 shiftwidth=4 tabstop=4 cindent expandtab: */

/*

  Author(s):    Ofri Sadowsky, Anton Deguet
  Created on:   2003-08-18

  (C) Copyright 2003-2007 Johns Hopkins University (JHU), All Rights
  Reserved.

--- begin cisst license - do not edit ---

This software is provided "as is" under an open source license, with
no warranty.  The complete license can be found in license.txt and
http://www.cisst.org/cisst/license.txt.

--- end cisst license ---
*/

#pragma once
#ifndef _vctStoreBackUnaryOperations_h
#define _vctStoreBackUnaryOperations_h

template<class _inputOutputElementType>
class vctStoreBackUnaryOperations
{
    public:
    typedef _inputOutputElementType InputOutputElementType;

    class MakeAbs {
    public:
        static inline InputOutputElementType Operate(InputOutputElementType & inputOutput) {
            return (inputOutput = (inputOutput > InputOutputElementType(0))
                    ?
                    InputOutputElementType(inputOutput)
                    :
                    InputOutputElementType(-inputOutput));
        }
    };

    class MakeNegation {
    public:
        static inline InputOutputElementType Operate(InputOutputElementType & inputOutput) {
            return (inputOutput = InputOutputElementType(-inputOutput));
        }
    };

    class MakeFloor {
    public:
        static inline InputOutputElementType Operate(InputOutputElementType & inputOutput) {
            return (inputOutput = InputOutputElementType( floor((double)inputOutput) ));
        }
    };

    class MakeCeil {
    public:
        static inline InputOutputElementType Operate(InputOutputElementType & inputOutput) {
            return (inputOutput = InputOutputElementType( ceil((double)inputOutput) ));
        }
    };


};


#endif  // _vctStoreBackUnaryOperations_h