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author | dan miller | 2007-10-19 05:20:07 +0000 |
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committer | dan miller | 2007-10-19 05:20:07 +0000 |
commit | fca74b0bf0a0833f5701e9c0de7b3bc15b2233dd (patch) | |
tree | 51bcae7a1b8381a6bf6fd8025a7de1e30fe0045d /libraries/ode-0.9/ode/src/array.h | |
parent | resubmitting ode (diff) | |
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Diffstat (limited to 'libraries/ode-0.9/ode/src/array.h')
-rw-r--r-- | libraries/ode-0.9/ode/src/array.h | 135 |
1 files changed, 0 insertions, 135 deletions
diff --git a/libraries/ode-0.9/ode/src/array.h b/libraries/ode-0.9/ode/src/array.h deleted file mode 100644 index 307206c..0000000 --- a/libraries/ode-0.9/ode/src/array.h +++ /dev/null | |||
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1 | /************************************************************************* | ||
2 | * * | ||
3 | * Open Dynamics Engine, Copyright (C) 2001,2002 Russell L. Smith. * | ||
4 | * All rights reserved. Email: russ@q12.org Web: www.q12.org * | ||
5 | * * | ||
6 | * This library is free software; you can redistribute it and/or * | ||
7 | * modify it under the terms of EITHER: * | ||
8 | * (1) The GNU Lesser General Public License as published by the Free * | ||
9 | * Software Foundation; either version 2.1 of the License, or (at * | ||
10 | * your option) any later version. The text of the GNU Lesser * | ||
11 | * General Public License is included with this library in the * | ||
12 | * file LICENSE.TXT. * | ||
13 | * (2) The BSD-style license that is included with this library in * | ||
14 | * the file LICENSE-BSD.TXT. * | ||
15 | * * | ||
16 | * This library is distributed in the hope that it will be useful, * | ||
17 | * but WITHOUT ANY WARRANTY; without even the implied warranty of * | ||
18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the files * | ||
19 | * LICENSE.TXT and LICENSE-BSD.TXT for more details. * | ||
20 | * * | ||
21 | *************************************************************************/ | ||
22 | |||
23 | /* this comes from the `reuse' library. copy any changes back to the source. | ||
24 | * | ||
25 | * Variable sized array template. The array is always stored in a contiguous | ||
26 | * chunk. The array can be resized. A size increase will cause more memory | ||
27 | * to be allocated, and may result in relocation of the array memory. | ||
28 | * A size decrease has no effect on the memory allocation. | ||
29 | * | ||
30 | * Array elements with constructors or destructors are not supported! | ||
31 | * But if you must have such elements, here's what to know/do: | ||
32 | * - Bitwise copy is used when copying whole arrays. | ||
33 | * - When copying individual items (via push(), insert() etc) the `=' | ||
34 | * (equals) operator is used. Thus you should define this operator to do | ||
35 | * a bitwise copy. You should probably also define the copy constructor. | ||
36 | */ | ||
37 | |||
38 | |||
39 | #ifndef _ODE_ARRAY_H_ | ||
40 | #define _ODE_ARRAY_H_ | ||
41 | |||
42 | #include <ode/config.h> | ||
43 | |||
44 | |||
45 | // this base class has no constructors or destructor, for your convenience. | ||
46 | |||
47 | class dArrayBase { | ||
48 | protected: | ||
49 | int _size; // number of elements in `data' | ||
50 | int _anum; // allocated number of elements in `data' | ||
51 | void *_data; // array data | ||
52 | |||
53 | void _freeAll (int sizeofT); | ||
54 | void _setSize (int newsize, int sizeofT); | ||
55 | // set the array size to `newsize', allocating more memory if necessary. | ||
56 | // if newsize>_anum and is a power of two then this is guaranteed to | ||
57 | // set _size and _anum to newsize. | ||
58 | |||
59 | public: | ||
60 | // not: dArrayBase () { _size=0; _anum=0; _data=0; } | ||
61 | |||
62 | int size() const { return _size; } | ||
63 | int allocatedSize() const { return _anum; } | ||
64 | void * operator new (size_t size); | ||
65 | void operator delete (void *ptr, size_t size); | ||
66 | |||
67 | void constructor() { _size=0; _anum=0; _data=0; } | ||
68 | // if this structure is allocated with malloc() instead of new, you can | ||
69 | // call this to set it up. | ||
70 | |||
71 | void constructLocalArray (int __anum); | ||
72 | // this helper function allows non-reallocating arrays to be constructed | ||
73 | // on the stack (or in the heap if necessary). this is something of a | ||
74 | // kludge and should be used with extreme care. this function acts like | ||
75 | // a constructor - it is called on uninitialized memory that will hold the | ||
76 | // Array structure and the data. __anum is the number of elements that | ||
77 | // are allocated. the memory MUST be allocated with size: | ||
78 | // sizeof(ArrayBase) + __anum*sizeof(T) | ||
79 | // arrays allocated this way will never try to reallocate or free the | ||
80 | // memory - that's your job. | ||
81 | }; | ||
82 | |||
83 | |||
84 | template <class T> class dArray : public dArrayBase { | ||
85 | public: | ||
86 | void equals (const dArray<T> &x) { | ||
87 | setSize (x.size()); | ||
88 | memcpy (_data,x._data,x._size * sizeof(T)); | ||
89 | } | ||
90 | |||
91 | dArray () { constructor(); } | ||
92 | dArray (const dArray<T> &x) { constructor(); equals (x); } | ||
93 | ~dArray () { _freeAll(sizeof(T)); } | ||
94 | void setSize (int newsize) { _setSize (newsize,sizeof(T)); } | ||
95 | T *data() const { return (T*) _data; } | ||
96 | T & operator[] (int i) const { return ((T*)_data)[i]; } | ||
97 | void operator = (const dArray<T> &x) { equals (x); } | ||
98 | |||
99 | void push (const T item) { | ||
100 | if (_size < _anum) _size++; else _setSize (_size+1,sizeof(T)); | ||
101 | memcpy (&(((T*)_data)[_size-1]), &item, sizeof(T)); | ||
102 | } | ||
103 | |||
104 | void swap (dArray<T> &x) { | ||
105 | int tmp1; | ||
106 | void *tmp2; | ||
107 | tmp1=_size; _size=x._size; x._size=tmp1; | ||
108 | tmp1=_anum; _anum=x._anum; x._anum=tmp1; | ||
109 | tmp2=_data; _data=x._data; x._data=tmp2; | ||
110 | } | ||
111 | |||
112 | // insert the item at the position `i'. if i<0 then add the item to the | ||
113 | // start, if i >= size then add the item to the end of the array. | ||
114 | void insert (int i, const T item) { | ||
115 | if (_size < _anum) _size++; else _setSize (_size+1,sizeof(T)); | ||
116 | if (i >= (_size-1)) i = _size-1; // add to end | ||
117 | else { | ||
118 | if (i < 0) i=0; // add to start | ||
119 | int n = _size-1-i; | ||
120 | if (n>0) memmove (((T*)_data) + i+1, ((T*)_data) + i, n*sizeof(T)); | ||
121 | } | ||
122 | ((T*)_data)[i] = item; | ||
123 | } | ||
124 | |||
125 | void remove (int i) { | ||
126 | if (i >= 0 && i < _size) { // passing this test guarantees size>0 | ||
127 | int n = _size-1-i; | ||
128 | if (n>0) memmove (((T*)_data) + i, ((T*)_data) + i+1, n*sizeof(T)); | ||
129 | _size--; | ||
130 | } | ||
131 | } | ||
132 | }; | ||
133 | |||
134 | |||
135 | #endif | ||