| 1 | /*************************************************************************** |
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| 2 | * blitz/shapecheck.h Functions for checking conformability of arrays |
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| 3 | * |
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| 4 | * $Id: shapecheck.h,v 1.5 2003/12/11 03:44:22 julianc Exp $ |
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| 5 | * |
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| 6 | * Copyright (C) 1997-2001 Todd Veldhuizen <tveldhui@oonumerics.org> |
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| 7 | * |
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| 8 | * This program is free software; you can redistribute it and/or |
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| 9 | * modify it under the terms of the GNU General Public License |
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| 10 | * as published by the Free Software Foundation; either version 2 |
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| 11 | * of the License, or (at your option) any later version. |
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| 12 | * |
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| 13 | * This program is distributed in the hope that it will be useful, |
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| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 16 | * GNU General Public License for more details. |
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| 17 | * |
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| 18 | * Suggestions: blitz-dev@oonumerics.org |
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| 19 | * Bugs: blitz-bugs@oonumerics.org |
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| 20 | * |
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| 21 | * For more information, please see the Blitz++ Home Page: |
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| 22 | * http://oonumerics.org/blitz/ |
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| 23 | * |
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| 24 | ***************************************************************************/ |
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| 25 | |
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| 26 | #ifndef BZ_SHAPECHECK_H |
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| 27 | #define BZ_SHAPECHECK_H |
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| 28 | |
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| 29 | BZ_NAMESPACE(blitz) |
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| 30 | |
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| 31 | /* |
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| 32 | * The function areShapesConformable(A,B) checks that the shapes |
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| 33 | * A and B are conformable (i.e. the same size/geometry). Typically |
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| 34 | * the A and B parameters are of type TinyVector<int,N_rank> and represent |
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| 35 | * the extent of the arrays. It's possible that in the future jagged-edged |
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| 36 | * arrays will be supported, in which case shapes may be lists |
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| 37 | * of subdomains. |
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| 38 | */ |
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| 39 | |
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| 40 | template<typename T_shape1, typename T_shape2> |
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| 41 | inline bool areShapesConformable(const T_shape1&, const T_shape2&) |
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| 42 | { |
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| 43 | // If the shape objects are different types, this means |
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| 44 | // that the arrays are different ranks, or one is jagged |
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| 45 | // edged, etc. In this case the two arrays are not |
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| 46 | // conformable. |
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| 47 | return false; |
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| 48 | } |
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| 49 | |
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| 50 | template<typename T_shape> |
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| 51 | inline bool areShapesConformable(const T_shape& a, const T_shape& b) |
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| 52 | { |
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| 53 | // The shape objects are the same type, so compare them. |
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| 54 | |
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| 55 | // NEEDS_WORK-- once the "all" reduction is implemented, should |
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| 56 | // use it. |
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| 57 | // return all(a == b); |
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| 58 | |
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| 59 | for (unsigned i=0; i < a.length(); ++i) |
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| 60 | { |
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| 61 | if (a[i] != b[i]) |
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| 62 | { |
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| 63 | BZ_DEBUG_MESSAGE("Incompatible shapes detected: " << endl |
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| 64 | << a << endl << b << endl); |
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| 65 | return false; |
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| 66 | } |
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| 67 | } |
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| 68 | |
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| 69 | return true; |
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| 70 | } |
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| 71 | |
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| 72 | BZ_NAMESPACE_END |
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| 73 | |
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| 74 | #endif |
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