| 1 | /***************************************************************************
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| 2 | * blitz/vecpick.h Declaration of the VectorPick<T_numtype> class
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| 3 | *
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| 4 | * $Id: vecpick.h,v 1.1.1.1 1999-04-09 17:59:00 ansari Exp $
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| 5 | *
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| 6 | * Copyright (C) 1997,1998 Todd Veldhuizen <tveldhui@seurat.uwaterloo.ca>
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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-suggest@cybervision.com
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| 19 | * Bugs: blitz-bugs@cybervision.com
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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://seurat.uwaterloo.ca/blitz/
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| 23 | *
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| 24 | ***************************************************************************
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| 25 | * $Log: not supported by cvs2svn $
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| 26 | * Revision 1.5 1998/03/14 00:04:47 tveldhui
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| 27 | * 0.2-alpha-05
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| 28 | *
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| 29 | * Revision 1.4 1997/07/16 14:51:20 tveldhui
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| 30 | * Update: Alpha release 0.2 (Arrays)
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| 31 | *
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| 32 | * Revision 1.3 1997/01/24 14:42:00 tveldhui
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| 33 | * Periodic RCS update
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| 34 | *
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| 35 | * Revision 1.2 1997/01/23 03:28:28 tveldhui
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| 36 | * Periodic RCS update
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| 37 | *
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| 38 | * Revision 1.1 1997/01/13 22:19:58 tveldhui
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| 39 | * Periodic RCS update
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| 40 | *
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| 41 | *
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| 42 | */
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| 43 |
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| 44 | #ifndef BZ_VECPICK_H
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| 45 | #define BZ_VECPICK_H
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| 46 |
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| 47 | #ifndef BZ_VECTOR_H
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| 48 | #include <blitz/vector.h>
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| 49 | #endif
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| 50 |
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| 51 | BZ_NAMESPACE(blitz)
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| 52 |
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| 53 | // Forward declarations
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| 54 |
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| 55 | template<class P_numtype> class VectorPickIter;
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| 56 | template<class P_numtype> class VectorPickIterConst;
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| 57 |
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| 58 | // Declaration of class VectorPick<P_numtype>
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| 59 |
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| 60 | template<class P_numtype>
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| 61 | class VectorPick {
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| 62 |
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| 63 | public:
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| 64 | //////////////////////////////////////////////
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| 65 | // Public Types
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| 66 | //////////////////////////////////////////////
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| 67 |
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| 68 | typedef P_numtype T_numtype;
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| 69 | typedef Vector<T_numtype> T_vector;
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| 70 | typedef Vector<int> T_indexVector;
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| 71 | typedef VectorPick<T_numtype> T_pick;
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| 72 | typedef VectorPickIter<T_numtype> T_iterator;
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| 73 | typedef VectorPickIterConst<T_numtype> T_constIterator;
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| 74 |
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| 75 | //////////////////////////////////////////////
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| 76 | // Constructors //
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| 77 | //////////////////////////////////////////////
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| 78 |
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| 79 | VectorPick(T_vector& vector, T_indexVector& indexarg)
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| 80 | : vector_(vector), index_(indexarg)
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| 81 | { }
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| 82 |
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| 83 | VectorPick(const T_pick& vecpick)
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| 84 | : vector_(const_cast<T_vector&>(vecpick.vector_)),
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| 85 | index_(const_cast<T_indexVector&>(vecpick.index_))
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| 86 | { }
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| 87 |
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| 88 | VectorPick(T_pick& vecpick, Range r)
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| 89 | : vector_(vecpick.vector_), index_(vecpick.index_[r])
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| 90 | { }
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| 91 |
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| 92 | //////////////////////////////////////////////
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| 93 | // Member functions
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| 94 | //////////////////////////////////////////////
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| 95 |
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| 96 | T_iterator begin()
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| 97 | { return VectorPickIter<T_numtype>(*this); }
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| 98 |
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| 99 | T_constIterator begin() const
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| 100 | { return VectorPickIterConst<T_numtype>(*this); }
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| 101 |
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| 102 | // T_vector copy() const;
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| 103 |
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| 104 | // T_iterator end();
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| 105 |
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| 106 | // T_constIterator end() const;
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| 107 |
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| 108 | T_indexVector& indexSet()
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| 109 | { return index_; }
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| 110 |
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| 111 | const T_indexVector& indexSet() const
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| 112 | { return index_; }
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| 113 |
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| 114 | int length() const
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| 115 | { return index_.length(); }
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| 116 |
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| 117 | void setVector(Vector<T_numtype>& x)
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| 118 | { vector_.reference(x); }
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| 119 |
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| 120 | void setIndex(Vector<int>& index)
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| 121 | { index_.reference(index); }
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| 122 |
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| 123 | T_vector& vector()
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| 124 | { return vector_; }
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| 125 |
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| 126 | const T_vector& vector() const
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| 127 | { return vector_; }
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| 128 |
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| 129 | /////////////////////////////////////////////
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| 130 | // Library-internal member functions
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| 131 | // These are undocumented and may change or
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| 132 | // disappear in future releases.
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| 133 | /////////////////////////////////////////////
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| 134 |
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| 135 | int _bz_suggestLength() const
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| 136 | { return index_.length(); }
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| 137 |
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| 138 | _bz_bool _bz_hasFastAccess() const
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| 139 | { return vector_._bz_hasFastAccess() && index_._bz_hasFastAccess(); }
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| 140 |
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| 141 | T_numtype& _bz_fastAccess(int i)
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| 142 | { return vector_._bz_fastAccess(index_._bz_fastAccess(i)); }
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| 143 |
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| 144 | T_numtype _bz_fastAccess(int i) const
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| 145 | { return vector_._bz_fastAccess(index_._bz_fastAccess(i)); }
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| 146 |
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| 147 | _bz_VecExpr<T_constIterator> _bz_asVecExpr() const
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| 148 | { return _bz_VecExpr<T_constIterator>(begin()); }
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| 149 |
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| 150 | //////////////////////////////////////////////
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| 151 | // Subscripting operators
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| 152 | //////////////////////////////////////////////
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| 153 |
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| 154 | T_numtype operator()(int i) const
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| 155 | {
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| 156 | BZPRECONDITION(index_.stride() == 1);
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| 157 | BZPRECONDITION(vector_.stride() == 1);
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| 158 | BZPRECONDITION(i < index_.length());
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| 159 | BZPRECONDITION(index_[i] < vector_.length());
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| 160 | return vector_(index_(i));
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| 161 | }
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| 162 |
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| 163 | T_numtype& operator()(int i)
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| 164 | {
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| 165 | BZPRECONDITION(index_.stride() == 1);
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| 166 | BZPRECONDITION(vector_.stride() == 1);
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| 167 | BZPRECONDITION(i < index_.length());
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| 168 | BZPRECONDITION(index_[i] < vector_.length());
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| 169 | return vector_(index_(i));
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| 170 | }
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| 171 |
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| 172 | T_numtype operator[](int i) const
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| 173 | {
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| 174 | BZPRECONDITION(index_.stride() == 1);
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| 175 | BZPRECONDITION(vector_.stride() == 1);
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| 176 | BZPRECONDITION(i < index_.length());
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| 177 | BZPRECONDITION(index_[i] < vector_.length());
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| 178 | return vector_[index_[i]];
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| 179 | }
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| 180 |
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| 181 | T_numtype& operator[](int i)
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| 182 | {
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| 183 | BZPRECONDITION(index_.stride() == 1);
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| 184 | BZPRECONDITION(vector_.stride() == 1);
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| 185 | BZPRECONDITION(i < index_.length());
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| 186 | BZPRECONDITION(index_[i] < vector_.length());
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| 187 | return vector_[index_[i]];
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| 188 | }
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| 189 |
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| 190 | T_pick operator()(Range r)
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| 191 | {
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| 192 | return T_pick(*this, index_[r]);
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| 193 | }
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| 194 |
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| 195 | T_pick operator[](Range r)
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| 196 | {
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| 197 | return T_pick(*this, index_[r]);
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| 198 | }
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| 199 |
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| 200 | //////////////////////////////////////////////
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| 201 | // Assignment operators
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| 202 | //////////////////////////////////////////////
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| 203 |
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| 204 | // Scalar operand
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| 205 | T_pick& operator=(T_numtype);
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| 206 | T_pick& operator+=(T_numtype);
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| 207 | T_pick& operator-=(T_numtype);
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| 208 | T_pick& operator*=(T_numtype);
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| 209 | T_pick& operator/=(T_numtype);
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| 210 | T_pick& operator%=(T_numtype);
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| 211 | T_pick& operator^=(T_numtype);
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| 212 | T_pick& operator&=(T_numtype);
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| 213 | T_pick& operator|=(T_numtype);
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| 214 | T_pick& operator>>=(int);
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| 215 | T_pick& operator<<=(int);
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| 216 |
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| 217 | // Vector operand
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| 218 | template<class P_numtype2> T_pick& operator=(const Vector<P_numtype2> &);
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| 219 | template<class P_numtype2> T_pick& operator+=(const Vector<P_numtype2> &);
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| 220 | template<class P_numtype2> T_pick& operator-=(const Vector<P_numtype2> &);
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| 221 | template<class P_numtype2> T_pick& operator*=(const Vector<P_numtype2> &);
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| 222 | template<class P_numtype2> T_pick& operator/=(const Vector<P_numtype2> &);
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| 223 | template<class P_numtype2> T_pick& operator%=(const Vector<P_numtype2> &);
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| 224 | template<class P_numtype2> T_pick& operator^=(const Vector<P_numtype2> &);
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| 225 | template<class P_numtype2> T_pick& operator&=(const Vector<P_numtype2> &);
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| 226 | template<class P_numtype2> T_pick& operator|=(const Vector<P_numtype2> &);
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| 227 | template<class P_numtype2> T_pick& operator>>=(const Vector<P_numtype2> &);
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| 228 | template<class P_numtype2> T_pick& operator<<=(const Vector<P_numtype2> &);
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| 229 |
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| 230 | // Vector expression operand
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| 231 | template<class P_expr> T_pick& operator=(_bz_VecExpr<P_expr>);
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| 232 | template<class P_expr> T_pick& operator+=(_bz_VecExpr<P_expr>);
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| 233 | template<class P_expr> T_pick& operator-=(_bz_VecExpr<P_expr>);
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| 234 | template<class P_expr> T_pick& operator*=(_bz_VecExpr<P_expr>);
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| 235 | template<class P_expr> T_pick& operator/=(_bz_VecExpr<P_expr>);
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| 236 | template<class P_expr> T_pick& operator%=(_bz_VecExpr<P_expr>);
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| 237 | template<class P_expr> T_pick& operator^=(_bz_VecExpr<P_expr>);
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| 238 | template<class P_expr> T_pick& operator&=(_bz_VecExpr<P_expr>);
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| 239 | template<class P_expr> T_pick& operator|=(_bz_VecExpr<P_expr>);
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| 240 | template<class P_expr> T_pick& operator>>=(_bz_VecExpr<P_expr>);
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| 241 | template<class P_expr> T_pick& operator<<=(_bz_VecExpr<P_expr>);
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| 242 |
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| 243 | // Range operand
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| 244 | T_pick& operator=(Range);
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| 245 | T_pick& operator+=(Range);
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| 246 | T_pick& operator-=(Range);
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| 247 | T_pick& operator*=(Range);
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| 248 | T_pick& operator/=(Range);
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| 249 | T_pick& operator%=(Range);
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| 250 | T_pick& operator^=(Range);
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| 251 | T_pick& operator&=(Range);
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| 252 | T_pick& operator|=(Range);
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| 253 | T_pick& operator>>=(Range);
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| 254 | T_pick& operator<<=(Range);
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| 255 |
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| 256 | // Vector pick operand
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| 257 | template<class P_numtype2>
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| 258 | T_pick& operator=(const VectorPick<P_numtype2> &);
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| 259 | template<class P_numtype2>
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| 260 | T_pick& operator+=(const VectorPick<P_numtype2> &);
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| 261 | template<class P_numtype2>
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| 262 | T_pick& operator-=(const VectorPick<P_numtype2> &);
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| 263 | template<class P_numtype2>
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| 264 | T_pick& operator*=(const VectorPick<P_numtype2> &);
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| 265 | template<class P_numtype2>
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| 266 | T_pick& operator/=(const VectorPick<P_numtype2> &);
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| 267 | template<class P_numtype2>
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| 268 | T_pick& operator%=(const VectorPick<P_numtype2> &);
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| 269 | template<class P_numtype2>
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| 270 | T_pick& operator^=(const VectorPick<P_numtype2> &);
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| 271 | template<class P_numtype2>
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| 272 | T_pick& operator&=(const VectorPick<P_numtype2> &);
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| 273 | template<class P_numtype2>
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| 274 | T_pick& operator|=(const VectorPick<P_numtype2> &);
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| 275 | template<class P_numtype2>
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| 276 | T_pick& operator>>=(const VectorPick<P_numtype2> &);
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| 277 | template<class P_numtype2>
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| 278 | T_pick& operator<<=(const VectorPick<P_numtype2> &);
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| 279 |
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| 280 | // Random operand
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| 281 | template<class P_distribution>
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| 282 | T_pick& operator=(Random<P_distribution>& random);
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| 283 | template<class P_distribution>
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| 284 | T_pick& operator+=(Random<P_distribution>& random);
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| 285 | template<class P_distribution>
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| 286 | T_pick& operator-=(Random<P_distribution>& random);
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| 287 | template<class P_distribution>
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| 288 | T_pick& operator*=(Random<P_distribution>& random);
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| 289 | template<class P_distribution>
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| 290 | T_pick& operator/=(Random<P_distribution>& random);
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| 291 | template<class P_distribution>
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| 292 | T_pick& operator%=(Random<P_distribution>& random);
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| 293 | template<class P_distribution>
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| 294 | T_pick& operator^=(Random<P_distribution>& random);
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| 295 | template<class P_distribution>
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| 296 | T_pick& operator&=(Random<P_distribution>& random);
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| 297 | template<class P_distribution>
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| 298 | T_pick& operator|=(Random<P_distribution>& random);
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| 299 |
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| 300 | private:
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| 301 | VectorPick() { }
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| 302 |
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| 303 | template<class P_expr, class P_updater>
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| 304 | inline void _bz_assign(P_expr, P_updater);
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| 305 |
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| 306 | private:
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| 307 | T_vector vector_;
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| 308 | T_indexVector index_;
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| 309 | };
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| 310 |
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| 311 | BZ_NAMESPACE_END
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| 312 |
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| 313 | #include <blitz/vecpick.cc>
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| 314 | #include <blitz/vecpickio.cc>
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| 315 | #include <blitz/vecpickiter.h>
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| 316 |
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| 317 | #endif // BZ_VECPICK_H
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