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// -*- C++ -*-
/***************************************************************************
* blitz/shapecheck.h Functions for checking conformability of arrays
*
* $Id$
*
* Copyright (C) 1997-2011 Todd Veldhuizen <tveldhui@acm.org>
*
* This file is a part of Blitz.
*
* Blitz is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation, either version 3
* of the License, or (at your option) any later version.
*
* Blitz 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with Blitz. If not, see <http://www.gnu.org/licenses/>.
*
* Suggestions: blitz-devel@lists.sourceforge.net
* Bugs: blitz-support@lists.sourceforge.net
*
* For more information, please see the Blitz++ Home Page:
* https://sourceforge.net/projects/blitz/
*
***************************************************************************/
#ifndef BZ_SHAPECHECK_H
#define BZ_SHAPECHECK_H
#include <iostream>
#include <blitz/blitz.h>
BZ_NAMESPACE(blitz)
/*
* The function areShapesConformable(A,B) checks that the shapes
* A and B are conformable (i.e. the same size/geometry). Typically
* the A and B parameters are of type TinyVector<int,N_rank> and represent
* the extent of the arrays. It's possible that in the future jagged-edged
* arrays will be supported, in which case shapes may be lists
* of subdomains.
*/
template<typename T_shape1, typename T_shape2>
inline bool areShapesConformable(const T_shape1&, const T_shape2&)
{
// If the shape objects are different types, this means
// that the arrays are different ranks, or one is jagged
// edged, etc. In this case the two arrays are not
// conformable.
return false;
}
template<typename T_shape>
inline bool areShapesConformable(const T_shape& a, const T_shape& b)
{
// The shape objects are the same type, so compare them.
// NEEDS_WORK-- once the "all" reduction is implemented, should
// use it.
// return all(a == b);
for (int i=0; i < a.length(); ++i)
{
if (a[i] != b[i])
{
BZ_DEBUG_MESSAGE("Incompatible shapes detected: " << std::endl
<< a << std::endl << b << std::endl);
return false;
}
}
return true;
}
BZ_NAMESPACE_END
#endif
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