| 1 | // The template and inlines for the -*- C++ -*- indirect_array class.
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| 2 |
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| 3 | // Copyright (C) 1997, 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
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| 4 | //
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| 5 | // This file is part of the GNU ISO C++ Library. This library is free
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| 6 | // software; you can redistribute it and/or modify it under the
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| 7 | // terms of the GNU General Public License as published by the
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| 8 | // Free Software Foundation; either version 2, or (at your option)
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| 9 | // any later version.
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| 10 |
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| 11 | // This library is distributed in the hope that it will be useful,
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| 12 | // but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 13 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 14 | // GNU General Public License for more details.
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| 15 |
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| 16 | // You should have received a copy of the GNU General Public License along
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| 17 | // with this library; see the file COPYING. If not, write to the Free
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| 18 | // Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
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| 19 | // USA.
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| 20 |
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| 21 | // As a special exception, you may use this file as part of a free software
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| 22 | // library without restriction. Specifically, if other files instantiate
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| 23 | // templates or use macros or inline functions from this file, or you compile
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| 24 | // this file and link it with other files to produce an executable, this
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| 25 | // file does not by itself cause the resulting executable to be covered by
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| 26 | // the GNU General Public License. This exception does not however
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| 27 | // invalidate any other reasons why the executable file might be covered by
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| 28 | // the GNU General Public License.
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| 29 |
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| 30 | // Written by Gabriel Dos Reis <[email protected]>
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| 31 |
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| 32 | /** @file indirect_array.h
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| 33 | * This is an internal header file, included by other library headers.
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| 34 | * You should not attempt to use it directly.
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| 35 | */
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| 36 |
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| 37 | #ifndef _CPP_BITS_INDIRECT_ARRAY_H
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| 38 | #define _CPP_BITS_INDIRECT_ARRAY_H 1
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| 39 |
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| 40 | #pragma GCC system_header
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| 41 |
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| 42 | namespace std
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| 43 | {
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| 44 | template <class _Tp>
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| 45 | class indirect_array
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| 46 | {
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| 47 | public:
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| 48 | typedef _Tp value_type;
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| 49 |
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| 50 | // XXX: This is a proposed resolution for DR-253.
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| 51 | indirect_array& operator= (const indirect_array&);
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| 52 |
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| 53 | void operator= (const valarray<_Tp>&) const;
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| 54 | void operator*= (const valarray<_Tp>&) const;
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| 55 | void operator/= (const valarray<_Tp>&) const;
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| 56 | void operator%= (const valarray<_Tp>&) const;
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| 57 | void operator+= (const valarray<_Tp>&) const;
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| 58 | void operator-= (const valarray<_Tp>&) const;
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| 59 | void operator^= (const valarray<_Tp>&) const;
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| 60 | void operator&= (const valarray<_Tp>&) const;
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| 61 | void operator|= (const valarray<_Tp>&) const;
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| 62 | void operator<<= (const valarray<_Tp>&) const;
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| 63 | void operator>>= (const valarray<_Tp>&) const;
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| 64 | void operator= (const _Tp&);
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| 65 | // ~indirect_array();
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| 66 |
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| 67 | template<class _Dom>
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| 68 | void operator= (const _Expr<_Dom, _Tp>&) const;
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| 69 | template<class _Dom>
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| 70 | void operator*= (const _Expr<_Dom, _Tp>&) const;
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| 71 | template<class _Dom>
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| 72 | void operator/= (const _Expr<_Dom, _Tp>&) const;
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| 73 | template<class _Dom>
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| 74 | void operator%= (const _Expr<_Dom, _Tp>&) const;
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| 75 | template<class _Dom>
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| 76 | void operator+= (const _Expr<_Dom, _Tp>&) const;
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| 77 | template<class _Dom>
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| 78 | void operator-= (const _Expr<_Dom, _Tp>&) const;
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| 79 | template<class _Dom>
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| 80 | void operator^= (const _Expr<_Dom, _Tp>&) const;
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| 81 | template<class _Dom>
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| 82 | void operator&= (const _Expr<_Dom, _Tp>&) const;
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| 83 | template<class _Dom>
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| 84 | void operator|= (const _Expr<_Dom, _Tp>&) const;
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| 85 | template<class _Dom>
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| 86 | void operator<<= (const _Expr<_Dom, _Tp>&) const;
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| 87 | template<class _Dom>
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| 88 | void operator>>= (const _Expr<_Dom, _Tp>&) const;
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| 89 |
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| 90 | private:
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| 91 | indirect_array (const indirect_array&);
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| 92 | indirect_array (_Array<_Tp>, size_t, _Array<size_t>);
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| 93 |
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| 94 | friend class valarray<_Tp>;
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| 95 | friend class gslice_array<_Tp>;
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| 96 |
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| 97 | const size_t _M_sz;
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| 98 | const _Array<size_t> _M_index;
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| 99 | const _Array<_Tp> _M_array;
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| 100 |
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| 101 | // not implemented
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| 102 | indirect_array ();
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| 103 | };
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| 104 |
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| 105 | template<typename _Tp>
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| 106 | inline indirect_array<_Tp>::indirect_array(const indirect_array<_Tp>& __a)
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| 107 | : _M_sz (__a._M_sz), _M_index (__a._M_index),
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| 108 | _M_array (__a._M_array) {}
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| 109 |
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| 110 | template<typename _Tp>
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| 111 | inline
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| 112 | indirect_array<_Tp>::indirect_array (_Array<_Tp> __a, size_t __s,
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| 113 | _Array<size_t> __i)
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| 114 | : _M_sz (__s), _M_index (__i), _M_array (__a) {}
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| 115 |
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| 116 | template<typename _Tp>
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| 117 | inline indirect_array<_Tp>&
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| 118 | indirect_array<_Tp>::operator=(const indirect_array<_Tp>& __a)
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| 119 | {
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| 120 | __valarray_copy(__a._M_array, _M_sz, __a._M_index, _M_array, _M_index);
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| 121 | return *this;
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| 122 | }
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| 123 |
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| 124 |
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| 125 | template<typename _Tp>
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| 126 | inline void
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| 127 | indirect_array<_Tp>::operator= (const _Tp& __t)
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| 128 | { __valarray_fill(_M_array, _M_index, _M_sz, __t); }
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| 129 |
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| 130 | template<typename _Tp>
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| 131 | inline void
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| 132 | indirect_array<_Tp>::operator= (const valarray<_Tp>& __v) const
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| 133 | { __valarray_copy (_Array<_Tp> (__v), _M_sz, _M_array, _M_index); }
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| 134 |
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| 135 | template<typename _Tp>
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| 136 | template<class _Dom>
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| 137 | inline void
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| 138 | indirect_array<_Tp>::operator= (const _Expr<_Dom,_Tp>& __e) const
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| 139 | { __valarray_copy (__e, _M_sz, _M_array, _M_index); }
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| 140 |
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| 141 | #undef _DEFINE_VALARRAY_OPERATOR
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| 142 | #define _DEFINE_VALARRAY_OPERATOR(op, name) \
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| 143 | template<typename _Tp> \
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| 144 | inline void \
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| 145 | indirect_array<_Tp>::operator op##= (const valarray<_Tp>& __v) const \
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| 146 | { \
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| 147 | _Array_augmented_##name (_M_array, _M_index, _Array<_Tp> (__v), _M_sz); \
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| 148 | } \
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| 149 | \
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| 150 | template<typename _Tp> template<class _Dom> \
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| 151 | inline void \
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| 152 | indirect_array<_Tp>::operator op##= (const _Expr<_Dom,_Tp>& __e) const \
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| 153 | { \
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| 154 | _Array_augmented_##name (_M_array, _M_index, __e, _M_sz); \
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| 155 | }
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| 156 |
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| 157 | _DEFINE_VALARRAY_OPERATOR(*, multiplies)
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| 158 | _DEFINE_VALARRAY_OPERATOR(/, divides)
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| 159 | _DEFINE_VALARRAY_OPERATOR(%, modulus)
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| 160 | _DEFINE_VALARRAY_OPERATOR(+, plus)
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| 161 | _DEFINE_VALARRAY_OPERATOR(-, minus)
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| 162 | _DEFINE_VALARRAY_OPERATOR(^, xor)
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| 163 | _DEFINE_VALARRAY_OPERATOR(&, and)
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| 164 | _DEFINE_VALARRAY_OPERATOR(|, or)
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| 165 | _DEFINE_VALARRAY_OPERATOR(<<, shift_left)
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| 166 | _DEFINE_VALARRAY_OPERATOR(>>, shift_right)
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| 167 |
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| 168 | #undef _DEFINE_VALARRAY_OPERATOR
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| 169 |
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| 170 | } // std::
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| 171 |
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| 172 | #endif /* _CPP_BITS_INDIRECT_ARRAY_H */
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| 173 |
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| 174 | // Local Variables:
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| 175 | // mode:c++
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| 176 | // End:
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