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1 | // Copyright (c) 1998-1999 Matra Datavision |
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2 | // Copyright (c) 1999-2014 OPEN CASCADE SAS |
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3 | // |
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4 | // This file is part of Open CASCADE Technology software library. |
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5 | // |
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6 | // This library is free software; you can redistribute it and/or modify it under |
7 | // the terms of the GNU Lesser General Public License version 2.1 as published |
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8 | // by the Free Software Foundation, with special exception defined in the file |
9 | // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT |
10 | // distribution for complete text of the license and disclaimer of any warranty. |
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11 | // |
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12 | // Alternatively, this file may be used under the terms of Open CASCADE |
13 | // commercial license or contractual agreement. |
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14 | |
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15 | #include <Standard_Transient.hxx> |
16 | #include <Standard_Persistent.hxx> |
17 | #include <Standard_Type.hxx> |
18 | #include <Standard_RangeError.hxx> |
19 | |
20 | //============================================================================ |
21 | Standard_EXPORT Standard_Integer HashCode(const Standard_Address me,const Standard_Integer Upper,const Handle(Standard_Type)& aType) |
22 | { |
23 | char *mecharPtr; |
24 | Standard_Integer *meintPtr = (Standard_Integer *) me; |
25 | Standard_Integer aHashCode, aRest, i, aSize = aType->Size(); |
26 | |
27 | Standard_RangeError_Raise_if (Upper < 1, |
28 | "Try to apply HashCode method with negative or null argument."); |
29 | |
30 | aRest = aSize % sizeof(Standard_Integer); |
31 | |
32 | aHashCode = 0; |
33 | |
34 | if (aSize == 0) |
35 | aHashCode = (Standard_Integer) ptrdiff_t(me); |
36 | |
37 | |
38 | for (i = 0; (unsigned int ) i < aSize / sizeof(Standard_Integer); i++) |
39 | { |
40 | aHashCode = aHashCode ^ *meintPtr; |
41 | meintPtr++; |
42 | } |
43 | |
44 | mecharPtr = (char *) meintPtr; |
45 | |
46 | for (i = 0; i < aRest; i++) |
47 | { |
48 | aHashCode = aHashCode ^ *mecharPtr; |
49 | mecharPtr++; |
50 | } |
51 | |
52 | |
53 | return HashCode( aHashCode , Upper) ; |
54 | } |
55 | |
56 | //============================================================================ |
57 | Standard_EXPORT Standard_Integer HashCode (const Handle(Standard_Transient)& me, |
58 | const Standard_Integer Upper ) |
59 | { |
60 | Standard_RangeError_Raise_if (Upper < 1, |
61 | "Try to apply HashCode method " |
62 | "with negative or null argument."); |
63 | |
64 | const Standard_Integer I = (Standard_Integer) ptrdiff_t(me.operator->()); |
65 | return HashCode( I , Upper ) ; |
66 | } |
67 | |
68 | //============================================================================ |
69 | Standard_EXPORT Standard_Integer HashCode(const Handle(Standard_Persistent)& me, |
70 | const Standard_Integer Upper ) |
71 | { |
72 | Standard_RangeError_Raise_if (Upper < 1, |
73 | "Try to apply HashCode method " |
74 | "with negative or null argument."); |
75 | |
76 | const Standard_Integer I = (Standard_Integer) ptrdiff_t(me.operator->()); |
77 | return HashCode( I , Upper) ; |
78 | } |
79 | |