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libopencv-dev / usr / local / include / opencv2 / cudev / expr / expr.hpp
/*M///////////////////////////////////////////////////////////////////////////////////////
//
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//
//  By downloading, copying, installing or using the software you agree to this license.
//  If you do not agree to this license, do not download, install,
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//
//                          License Agreement
//                For Open Source Computer Vision Library
//
// Copyright (C) 2000-2008, Intel Corporation, all rights reserved.
// Copyright (C) 2009, Willow Garage Inc., all rights reserved.
// Copyright (C) 2013, OpenCV Foundation, all rights reserved.
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//
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// are permitted provided that the following conditions are met:
//
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//     this list of conditions and the following disclaimer.
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#pragma once

#ifndef __OPENCV_CUDEV_EXPR_EXPR_HPP__
#define __OPENCV_CUDEV_EXPR_EXPR_HPP__

#include "../common.hpp"
#include "../ptr2d/traits.hpp"

namespace cv { namespace cudev {

//! @addtogroup cudev
//! @{

template <class Body> struct Expr
{
    Body body;
};

template <class Body>
__host__ Expr<Body> makeExpr(const Body& body)
{
    Expr<Body> e;
    e.body = body;
    return e;
}

template <class Body> struct PtrTraits< Expr<Body> >
{
    typedef Expr<Body>                         ptr_sz_type;
    typedef typename PtrTraits<Body>::ptr_type ptr_type;

    typedef typename ptr_type::value_type value_type;

    __host__ static ptr_type shrinkPtr(const Expr<Body>& expr)
    {
        return PtrTraits<Body>::shrinkPtr(expr.body);
    }

    __host__ static int getRows(const Expr<Body>& expr)
    {
        return PtrTraits<Body>::getRows(expr.body);
    }

    __host__ static int getCols(const Expr<Body>& expr)
    {
        return PtrTraits<Body>::getCols(expr.body);
    }
};

//! @}

}}

#endif
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