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2b2be3fb82
0030551: Foundation Classes - Integer overflow in NCollection_CellFilter HashCode Signed integers are not used in hash code functions now to prevent undefined behavior on left shift operations with signed integers. A possibility of negative values of hash codes is eliminated. INT_MAX → IntegerLast() in hash code functions. All found hash code functions behaves uniformly now: they return a value in the range [1, theUpperBound]. Relevant comments are added to such functions.
48 lines
1.9 KiB
C++
48 lines
1.9 KiB
C++
// Created on: 2003-10-08
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// Created by: Alexander SOLOVYOV
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// Copyright (c) 2003-2014 OPEN CASCADE SAS
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//
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// This file is part of Open CASCADE Technology software library.
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//
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// This library is free software; you can redistribute it and/or modify it under
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// the terms of the GNU Lesser General Public License version 2.1 as published
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// by the Free Software Foundation, with special exception defined in the file
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// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
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// distribution for complete text of the license and disclaimer of any warranty.
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//
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// Alternatively, this file may be used under the terms of Open CASCADE
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// commercial license or contractual agreement.
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#ifndef MeshVS_TwoColors_HeaderFile
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#define MeshVS_TwoColors_HeaderFile
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#include <Quantity_Color.hxx>
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typedef struct {
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unsigned int r1 : 8;
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unsigned int g1 : 8;
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unsigned int b1 : 8;
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unsigned int r2 : 8;
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unsigned int g2 : 8;
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unsigned int b2 : 8;
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} MeshVS_TwoColors;
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//! Computes a hash code for the key, in the range [1, theUpperBound]
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//! @param theKey the key which hash code is to be computed
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//! @param theUpperBound the upper bound of the range a computing hash code must be within
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//! @return a computed hash code, in the range [1, theUpperBound]
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Standard_EXPORT Standard_Integer HashCode (const MeshVS_TwoColors& theKey, Standard_Integer theUpperBound);
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Standard_EXPORT Standard_Boolean IsEqual (const MeshVS_TwoColors& K1,
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const MeshVS_TwoColors& K2 );
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Standard_EXPORT Standard_Boolean operator== ( const MeshVS_TwoColors& K1,
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const MeshVS_TwoColors& K2 );
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Standard_EXPORT MeshVS_TwoColors BindTwoColors ( const Quantity_Color&, const Quantity_Color& );
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Standard_EXPORT Quantity_Color ExtractColor ( MeshVS_TwoColors&, const Standard_Integer );
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Standard_EXPORT void ExtractColors ( MeshVS_TwoColors&, Quantity_Color&, Quantity_Color& );
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#endif
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